Why is solar energy called renewable?

Answers

Answer 1

Solar energy is called renewable because it is abundant in nature and can be filled repeatedly.

Energy is power or strength that can be used for various activities. Energy cannot be created but can be changed from one form to another and can be transferred.

Solar energy is energy produced from the radiant heat of sunlight that can be utilized by all living things on earth, both humans, animals and plants. Solar energy can also be used as an alternative energy because it is environmentally friendly. This energy is included in renewable energy because the amount is abundant and endless even though it is used in large quantities.

Learn more about renewable energy at:

https://brainly.com/question/17373437

#SPJ4


Related Questions

Imagine you are an astronomer who recently discovered a new planet orbiting a distant star. Which set of characteristics would you use to classify this planet as an inner or terrestrial planet

Answers

The characteristics which I would suggest are the planet should be dense, solid and located near star.

All the eight planets of the solar system move around the sun in fixed paths. These paths are elongated. They are called orbits. Mercury is nearest to the sun. It takes only about 88 days to complete one round along its orbit.

Venus is considered as ‘Earth’s-twin’ because its size and shape are very much similar to that of the earth.

Till recently (August 2006), Pluto was also considered a planet. However, in a meeting of the International Astronomical Union, a decision was taken that Pluto like other celestial objects (Ceres, 2003 UB313) discovered in recent past may be called ‘dwarf planets.

To know more about planets here

https://brainly.com/question/734965

#SPJ4

A girl travels along the circumference of a circle of radius 14 m. What is her total distance travelled and displacement when she has described half a circle, three fourth of a circle and full circle.

Answers

Answer:

87.976meters, 43.988 meters, 65.982 meters

Explanation:

Given data

Radius= 14m

Let us find the circumference of the circle

This is equivalent to the total distance covered

C= 2πr

C= 2*3.142*14

C= 87.976 meters

Hence the total distance is

87.976meters

The displacement when she has covered 1/2 the circle is

=87.976/2

=43.988 meters

The displacement when she has covered 3/4 the circle is

=87.976* 3/4

=65.982 meters

Helpp pls
A small balloon with a 1.36E-9 C charge is placed a distance of 0.4100 m from a 1.99E-7 C charge. Determine the electric field intensity at the location of the balloon. Round to the appropriate number of sig figs, and do not put your answer in scientific notation.

Answers

Answer:

The intensity of the electric field is

[tex]|E|=10654.37 \:N/C[/tex]

Explanation:

The electric field equation is given by:

[tex]|E|=k\frac{q}{d^{2}}[/tex]

Where:

k is the Coulomb constant q is the charge at 0.4100 m from the balloond is the distance from the charge to the balloon

As we need to find the electric field at the location of the balloon, we just need the charge equal to 1.99*10⁻⁷ C.

Then, let's use the equation written above.

[tex]|E|=(9*10^{9})\frac{1.99*10^{-7}}{0.41^{2}}[/tex]

[tex]|E|=10654.37 \:N/C[/tex]

I hope it helps you!

Answer:

10650

Explanation:

just round that answer to four significant figures and you get that answer

For the circuit shown in the figure, what is the current through resistor R1? A) 0.071 A
B) 0.13 A
C) 0.029 A
D) 0.016 A

Answers

For the circuit shown in the figure, 0.071 A is the current through resistor R1.

What is circuit ?
Circuit
is an electrical network consisting of interconnected components that allow electricity to flow through it. It is used to control, regulate, and direct the flow of electricity in order to perform a specific task. A circuit is composed of wires, resistors, transistors, capacitors, and other components which are connected together in order to form a complete system. This system can be used to control a variety of electrical devices, such as lights, motors, and computers. Circuits can be used to create a wide range of applications, from simple household appliances to complex industrial machines.

The current through R1 can be calculated using Ohm's Law:

I = V/R = (9V)/(120Ω) = 0.075 A

Therefore, the answer is A) 0.071 A.

To learn about more circuit

https://brainly.com/question/26064065

#SPJ4

Why does acceleration increase down a ramp?

Answers

Acceleration increase down a ramp, due to an object is free to move under the influence of gravity. That's why acceleration increases.

Acceleration is a measure of how quickly an object's velocity changes. On a ramp, an object is free to move under the influence of gravity. The gravitational force acting on an object is always directed downward, and the force of friction acting on an object is directed upward. The force acting on an object moving down a ramp is the force of gravity minus the force of friction. Since the force of gravity is greater than the force of friction, the net force acting on the object is directed downward, which causes the object to accelerate downward. The angle of the ramp affects the force of friction, as the greater the angle of the ramp, the greater the force of friction, and the less the net force acting on the object and less acceleration. Therefore, acceleration increases down a ramp because the net force acting on an object is directed downward and the angle of the ramp affects the force of friction.

To know more about acceleration please refer: https://brainly.com/question/12550364

#SPJ4

what is an example of an event that can compromise an ecosystem?
A. Rivers flooding the Amazon basin in south America
B. Ocean currents cooling the gulf stream
C. Solar storms hitting earths magnetosphere
D. Global warming melting summer ice floes in the arctic

Answers

The one option that specifically connects to an environment is option D: Global warming melting summer ice floes in the Arctic. All of the other alternatives have the potential to harm ecosystems.

The Arctic ecology may be significantly impacted by the melting of summer ice floes as a result of global warming. Many species, including polar bears, seals, walruses, and other bird species, are dependent on the ice for their existence in the Arctic environment since it has been specially adapted to the presence of sea ice.

The habitats and food sources of these animals are disrupted as the ice floes melt. It may result in fewer hunting areas being accessible, change marine animals' reproductive cycles, and have an effect on the entire food chain in the Arctic ecosystem.

To know more about ecosystem :

https://brainly.com/question/31459119

#SPJ1.

Answer:

D. Global warming melting summer ice floes in the arctic

Explanation:

You throw a ball vertically upward so that it leaves the ground with velocity 5. 68 m/s.


(a) What is its velocity when it reaches its maximum altitude? magnitude 0 Correct: Your answer is correct. M/s direction Incorrect: Your answer is incorrect.

(b) What is its acceleration at this point? magnitude -9. 8 Incorrect: Your answer is incorrect. The response you submitted has the wrong sign. M/s2 direction Incorrect: Your answer is incorrect.

(c) What is the velocity with which it returns to ground level? magnitude -5. 68 Incorrect: Your answer is incorrect. The response you submitted has the wrong sign. M/s direction Correct: Your answer is correct.

(d) What is its acceleration at this point? magnitude 9. 8 Correct: Your answer is correct. M/s2 direction Correct: Your answer is correct

Answers

The length of time needed to descend back to the earth's surface. Gravitational acceleration is equal to -9.8 m/s2. 2 s^2 s2

Explanation for the above answer:

When anything is sent vertically upward, it slows down due to gravity. Up until it reaches a maximum height, where the velocity is zero, its speed is decreasing. After that, gravity accelerates it uniformly downward.

The three equations are as follows: v = u + at, v2 = u + 2as, and s = ut + 12at2.

What is the vertical velocity formula?

With this knowledge, the vertical velocity formula, vf=vi+gt v f = v I + g t, can be used to calculate the object's terminal velocity. This equation is used by physicists to predict how any object will move on a vertical plane.

To learn more about velocity visit:

brainly.com/question/18084516

#SPJ4

find the numerical value of the density of a nucleus of atomic number A​

Answers

Answer:

(A)²

Explanation:

Atomic mass = density*volume of atom.

So, density of nucleus is in depend of mass number

d=

3

4

πr

3

Massno.

=

3

4

π×[1.3×10

−13

×A

1/3

]

3

A

=constant∗A

0

as R=R

0

A

1/3

(R

0

=1.1×10

−15

m)

The numerical value of the density of a nucleus of atomic number A is determined as 2.29 x 10¹⁷ kg/m³.

Density of the nucleus

The density of the nucleus of atomic number A​ is calculated as follows;

ρ = m/V

where;

m is mass of the atom = 1.66 x 10⁻²⁷ kgr is radius of the atom = 1.2 x 10⁻¹⁵ m

[tex]\rho = \frac{m}{V} \\\\\rho = \frac{m}{\frac{4}{3} \pi r^3} \\\\\rho = \frac{1.66 \times 10^{-27}}{\frac{4}{3} \pi (1.2 \times 10^{-15})^3} \\\\\rho = 2.29 \times 10^{17} \ kg/m^3[/tex]

Thus, the numerical value of the density of a nucleus of atomic number A is determined as 2.29 x 10¹⁷ kg/m³.

The complete question is below:

​find the numerical value of the density of a nucleus of atomic number A​ with a radius of  1.2 x 10⁻¹⁵ m and mass of 1.66 x 10⁻²⁷ kg.

Learn more about density here: https://brainly.com/question/6838128

#SPJ6

A conducting bar moves along a circuit with a constant velocity. A constant magnetic field is perpendicular to the bar and circuit. The bar has covered 13.00 m2 of area by a certain time and then 15.60 m2 1.00 second later. The average EMF induced in the circuit over the 1.00 second time interval is 1.30 V. What is the strength of the magnetic field?​

Answers

Answer:

0.500 T

Explanation:

Since the change in time and the number of coils are both 1, I set the problem up to be 1.3=(1.5(x)-13(x)). I then plugged in numbers for x until I got the answer to be 1.3 V.

ritmo al que cambia la velocidad

Answers

Respuesta :

Explicación:

Velocidad de que?

a child swings on a playground swing with a 2.5 m long chain. what is the period of the child's motion. what is the frequency of the vibration

Answers

The period of the child's motion is 3.171 seconds. The frequency of the vibration is 0.315 Hz.

The time period is 3.171 seconds.

2 × [tex]\pi[/tex] [tex]\frac{L}{g} ^{\frac{1}{2} }[/tex]

= 3.171 seconds

The frequency is the reciprocal of the time period.

f = 1 ÷ 3.171

= 0.315Hz

Learn more about frequency here:-

https://brainly.com/question/29739263

#SPJ4

If a non-rotating object has no acceleration, then we can say for certain that it is A) in mechanical equilibrium. B) moving at constant non-zero velocity. C) at rest. D) all of the above E)none of the above

Answers

(A)  in mechanical equilibrium is correct option, as there is no net force acting on it. A non-rotating object that has no acceleration can be said to be in mechanical equilibrium.

What is the definition of mechanical equilibrium?

Mechanical Balance When all forces acting on an object of interest are equal to zero, mechanical equilibrium has occurred. The balance of all the forces must exist for this to occur.

What distinguishes mechanical equilibrium from static equilibrium?

A reversible reaction is in a stable state called dynamic equilibrium when the rate of the forward reaction equals the rate of the backward reaction. The reaction has come to an end when there is static equilibrium, sometimes referred to as mechanical equilibrium. Or to put it another way, the system is idle.

Can mechanical equilibrium exist for an object in motion?

When an object's acceleration is equal to zero, it is said to be in mechanical equilibrium. The object is either at rest with no change in position over time or it is traveling at a constant pace in this state. The net force acting on the object is equal to zero since the acceleration is zero.

To know more about acceleration visit:

https://brainly.com/question/460763

#SPJ4

what is rotation in your own words. and you have to be detailed

Answers

Answer:

The action of rotating around something like for ex.. Child A stands in the middle of a room while Child B goes around Child A, Child B is rotating around Child A. Another ex. is; The earth rotates around the sun every 365 days the earth is rotating or going around the sun in a circle. So rotating to me is the act of rotating around something in any way shape or form.

PS: A middle schooler answered this so if you don't wanna believe me or think I'm wrong because I am younger you do you.

Select the correct answer. what are you calculating when you measure the disorder of a system?
a. enthalpy
b. efficiency
c. entropy
d. energy
e. equilibrium

Answers

Therefore, entropy is the measure of the disorder of a system.

What is the measure of disorder in entropy?More specifically, the second law of thermodynamics asserts that "any isolated or closed system will always have an increasing (or at least constant) net entropy as time progresses." Entropy, which measures disorder, has an impact on every element of our daily life. The term "entropy" used in thermodynamics also refers to statistical entropy. It is a measurement of a substance's disorder at the molecular level that is aggregated and assessed at the macroscopic level. The kinetic energy of the substance is also measured by the entropy. The total amount of heat is measured by enthalpy. - Entropy is a metric used to express the degree of chaos. Both have to do with the rules of thermodynamics.

To learn more about entropy refer to:

https://brainly.com/question/6677611

#SPJ4

A person pushes a book against a wall so that the book does not move. a. Draw a free-body diagram for the book. Label the forces as you did in the tutorial Forces. b. For each force that appears on your free-body diagram, identify the corresponding force that completes the Newton's third law (or action-reaction) force pair.

Answers

a) Pls refer to the attached picture. (b)The force with which the person i

In the above situation, what is the net torque on wire 2 due to wire 1?
a. Up b. Down
c. Into the screen d. Out of the screen e. Zero

Answers

In the above situation the net torque on wire 2 due to wire 1 is Zero.

Which way is the force acting on the wire?

Fleming's left-hand rule identifies the force's direction on a current-carrying wire when it is placed in a magnetic field. It always runs counter to how the magnetic field and electric current are moving.

Directional torque: what is it?

Torque is a vector quantity by definition. The direction is determined as part of the torque computation. The direction is parallel to both the force and the radius from the axis. It is customary to choose it along the rotational axis in the right-hand rule direction.

When rotating clockwise, is torque negative?

a force that is applied that results in a positive counterclockwise torque A negative torque rotates an object in a clockwise direction.

To know more about torque visit:

https://brainly.com/question/20691242

#SPJ4

Why is copper wire a better conductor of electricity than carbon fiber? (1 point)
A) Carbon (C) does not have any valence electrons.
B) Copper (Cu) is a metal, and only metals can conduct electricity.
C) The electrons in copper (Cu) are loosely bound to the nucleus.
D) Copper (Cu) has no loose electrons.

Answers

The copper wire a better conductor of electricity than carbon fiber because copper (Cu) is a metal, and only metals can conduct electricity option - B is correct answer.

Why does copper behave better as an electrical conductor?

A metal has greater electrical conductivity the lower its resistivity level. And copper wire is an excellent electrical conductor because it has a low level of resistivity. Incredibly flexible is another quality of copper.

Carbon fiber still does not conduct electricity as well as metal, even after being treated with other materials. Though still about 100 times faster than carbon fiber treated with good electricity conductors, metals like silver, aluminum, and copper are particularly good at conducting electricity.

To know more about copper visit:

https://brainly.com/question/29493129

#SPJ1

Answer:

1. The electrons in copper (Cu) are loosely bound to the nucleus. (C.)

2. An electrical current that flows in one direction (D.)

3. aluminum (Al) (D.)

4. Opposite charges attract one another. (D.)

5. Atoms with a nearly empty valence shell make good conductors. (C.)

Explanation:

I did the Connections Academy test (Conductors and Insulators Quick Check)

If it takes 4 hours for the Hogwarts express, moving at a speed of 100 mi/hr,to make it from Platform 9 and 3/4 to Hogwarts,how far apart are they?

Answers

The distance between Platform 9 and 3/4 and Hogwarts at a speed of 100miles/hour is 400miles.

What is distance?

Distance is defined as an object's total movement with or without regard for direction. Distance can be defined as how much ground an object has covered regardless of its starting or ending point. Distance can be measured as Speed multiplied by Time.

If it takes 4 hours from Hogwarts express, at a speed of 100mi/hr to Platform 9 and 3/4 to Hogwarts, using the formula;

Distance = Speed x Time

Distance = 100 miles/hour x 4 hours

Distance = 400 miles

Therefore, the distance to platform 9 and 3/4 from Hogwarts express is 400 miles.

Learn more on distance here: https://brainly.com/question/2854969

#SPJ1

The heat of fusion of a substance is 42. 5 J/g. How much energy is released when 40 g of this substance at its freezing point completely changes into a solid? Show your work.
A. ) 1. 700
B. ) 1. 06
C. ) 42. 5
D. ) 0 J​

Answers

The heat energy of the substance option (A) -1700J is correct.

We are given that,

Heat of fusion of a substance = ΔHf = 42.5J/g

Mass of the substance = m= 40g

The latent heat of fusion is the quantity of heat required to transform one gramme of a substance from a solid to a liquid. But in this case, it's important to figure out how much heat is released as liquid copper solidifies. So, ΔHf = -42.5 J/g

Thus , we have to calculated here the heat energy of the substance by the formula,

q = m·ΔHf

Where, q is heat energy ,m is mass ΔHf is the heat of fusion of a substance,

q = m·ΔHf

q = -42.5 J/g× 40g

q = -1700J

Therefore , the heat energy of the substance would be option (A) -1700J

To know more about heat

https://brainly.com/question/19531870

#SPJ4

An electron is located 1 meter from a +2 Coulomb charge, as shown below. The electrostatic force acting on the electron is directed toward which point?

Answers

Answer: point D

Explanation:

A 1.65-kg mass stretches a vertical spring 0.215 m. If the spring is stretched an additional 0.130 m and released, how long does it take to reach the (new) equilibrium position again

Answers

The time it takes for the mass to reach the new equilibrium position is approximately 0.15 seconds.

To calculate the time it takes for the mass to reach the new equilibrium position, you will need to know the spring constant of the spring. The spring constant, denoted by the letter k, is a measure of the spring's stiffness, and it is related to the force required to stretch the spring by a certain distance. If the spring constant is not given, it can not be calculated.

Once you have the spring constant, you can use the equation:

T = 2π √(m/k) where,

T is the period of oscillation (the time it takes for the mass to complete one full cycle of motion) m is the mass of the object attached to the spring k is the spring constant.

The spring constant (k) can be found by using the equation:

F = kx where,

F is the force applied to the spring x is the distance the spring is stretched from its equilibrium position, and k is the spring constant.

In this case, the force is equal to the weight of the mass, which is m*g, where m is the mass and g is the acceleration due to gravity.

mg = kx

or, k = (m*g)/x

or, k = (1.65 kg * 9.8 m/s^2) / 0.215 m = 74.65 kg/s^2

Now that we know the spring constant, we can use the equation:

T = 2π √(m/k)

To find the time it takes for the mass to reach the new equilibrium position, where T is the period of oscillation, m is the mass of the object attached to the spring, and k is the spring constant.

T = 2π √(1.65 kg / 74.65 kg/s^2) = 0.15 sec

So the time it takes for the mass to reach the new equilibrium position is approximately 0.15 seconds.

Learn more about Hook's law here:

https://brainly.com/question/2648431

#SPJ4


600 Joules of work is used to lift a box from the ground to a height of six meters. How much work would have been done if a lever would have been used with an effort arm of 12 meters and a load
arm of 6 meters? († point)
O 50 J
O 100 J
O 600 J
0 72 J

Answers

The work that would have been done if a lever would have been used with an effort arm of 12 meters and a load arm of 6 meters is 50 J.

option A is the correct answer.

What is the work done by the lever?

A lever is a simple machine that makes work easier and faster. When a lever is used, a small effort will be used to overcome a large load.

The efficiency of a machine increases when the output force is greater than the input force.

Mathematically, the formula for the efficiency of a machine is given as;

Eff = ( output force / input force ) x 100 %

The output force is given by the following formula;

F ( out ) = load x distance moved by load

The input force is given by the following formula;

F ( input ) = effort x distance moved by effort

The work that would have been done if a lever would have been used with an effort arm of 12 meters and a load arm of 6 meters is calculated as;

work = ( 600   x 6  ) / ( 12  x 6  )

work = 50 J

Learn more about lever here: https://brainly.com/question/416386

#SPJ1

Answer:

600 J

Explanation:

The work is not equal to the initial work divided by the effort arm.

Using the principle of conservation of energy and the final height the golf ball reaches after bouncing, determine the theoretical speed with which the ball must have left the floor (i.e on its way back up).

Mass: 0.0453kg
Initial height: 1m
Initial potential energy: 0.444J
Final height: 0.61m
Final potential energy: 0.271J
Efficiency: 61.0%

Answers

Answer:

2.58 m/s

Explanation:

To determine the theoretical speed at which the golf ball must have left the floor, you can use the principle of conservation of energy, which states that the total energy in a closed system remains constant. In this case, we can use the fact that the ball's potential energy changes as it rises and falls.

First, we know that the efficiency of the ball is 61.0%, so we can assume that 39% of the energy is lost as heat, sound, etc. We can calculate the initial kinetic energy (Ei) of the ball as:

Ei = Efficiency * (Initial Potential energy - Final Potential energy)

Ei = 0.61 * (0.444 - 0.271) = 0.119J

Now, we can use this value to calculate the velocity (Vi) of the ball as it left the floor, by using the equation of kinetic energy:

Ei = 0.5 * m * Vi^2

Where:

m = mass of the ball = 0.0453 kg

Vi = velocity of the ball when it left the floor

By substituting the values in the equation we get:

0.119 = 0.5 * 0.0453 * Vi^2

Solving for Vi:

Vi = sqrt(0.119 / (0.5 * 0.0453))

Vi ≈ 2.58 m/s

So, the theoretical speed with which the ball must have left the floor is approximately 2.58 m/s

Keep in mind that this is a theoretical speed and there may be a variance with real-world observations.

An athlete runs 140 m across a level field at an angle of 45.0° north of east. What is the north component of this displacement?

Answers

Displacement is a vector quantity thus, having different directional component. The component of the given displacement to the north is 98.99 m.

What is displacement ?

The displacement is the measure of how long and in which direction an object is moved from the starting position. Displacement is a vector quantity thus, characterized by a magnitude and direction.

In physics, displacement is the product of velocity and time. The vertical component of the displacement = d sin θ

horizontal component = d cos θ.

The component to the north for a displacement of 140m with the angle of 45° is = 140 × sin 45 = 98.99 m.

Therefore, the north component of the displacement is about 99 m.

Find more on displacement:

https://brainly.com/question/29307794

#SPJ1

The Law of Conservation of Energy states: Energy cannot be created or destroyed; it can be transformed fr
one form to another but the total amount of energy never changes. Car crashes can involve huge amounts
of energy. How does the crashworthiness of the car affect the transfer and transformations of energy and
ultimately, protect the occupants?

Answers

The kinetic energy does the work that crushes the car’s crumple zones.



In an impact event, such as a vehicle collision, how is energy transferred?

Conversion of collision energy Because the metal plastic deformation after the impact greatly increases the internal energy of the automobile, the majority of the kinetic energy in the collision process is turned into internal energy. Other types of kinetic energy are turned into heat energy, sound energy, and so on.

A serious vehicle accident can result in PTSD, acute anxiety, sadness, and crippling phobias. According to studies, crash-related mental traumas might have symptoms that continue up to a year following a car accident, especially in youngsters. Objects with potential energy, or stored energy, collide, and the energy transfers to kinetic energy, or the energy of an object in motion. This energy transfer from one to anotheanother


To learn more about Energy States to refer:
https://brainly.com/question/2289096
#SPJ1

what is the reading of the energy meter in figure 1 when an appropriate laser is used in pac to dissociate a particular chemical bond?

Answers

Because alkylbenzenes, phenols, and thiophenols all share an aromatic hydrocarbon constituent, the answer to this question is A.

Compounds 1 and 2 are both used to create liposomes, and their kinetics are controlled. Compound 1 are controlled kinetically, whereas those made from Compound 2 are controlled thermodynamically. UV lasers like nitrogen lasers (337 nm) and frequency-tripled and quadrupled Nd:YAG lasers are frequently used in MALDI methods (355 nm and 266 nm respectively). An artificial substrate for lactase is hydrolyzed to extract lactase from dietary supplement tablets, which is then measured using a colorimetric assay (ortho-nitrophenol-beta-D-galactopyranoside, ONPG). Because alkylbenzenes, phenols, and thiophenols all share an aromatic hydrocarbon constituent, the answer to this question is A.

The complete question is- What is the reading of the energy meter in Figure 1 when an appropriate laser is used in PAC to dissociate a particular chemical bond?

Learn more about hydrocarbon here-

https://brainly.com/question/17578846

#SPJ4

A helicopter blade spins at exactly 120 revolutions per minute. Its tip is 3.00 m from the center of rotation. (a) Calculate the average speed (in m/s) of the blade tip in the helicopter's frame of reference. m/s (b) What is its average velocity (in m/s) over one revolution

Answers

94.32m/s is the average speed (in m/s) of the blade tip in the helicopter's frame of reference.

What is the typical blade tip speed, measured in metres per second, when viewed from a helicopter perspective?

We discover that the sub average is 73.3 metres per second after entering this formula into our calculator and finding it to three significant numbers. The helicopter blade tip travels at an average speed of that.

How quickly does the blade tip typically move?

After one revolution, the blade point has moved nothing since it goes back to its original position. The average velocity is consequently zero.

FPM = RPM x . 262 x Blade Diameter (inches).

FPM = 120 x . 262 x 3.00 = 94.32m/s

To know more about average speed visit:-

https://brainly.com/question/12322912

#SPJ4

Suppose that the railcar passes by a horn that is emitting a sound with frequency f. Which of the following describes the frequency f PS-10-1-prime.gif that the person on the railcar hears?
A. f PS-10-1-prime.gif > f before passing the horn, f PS-10-1-prime.gif < f after passing it
B. f PS-10-1-prime.gif < f before passing the horn, f PS-10-1-prime.gif > f after passing it
C. f PS-10-1-prime.gif = f before passing the horn, f PS-10-1-prime.gif = f after passing it
D. f PS-10-1-prime.gif > f before passing the horn, f PS-10-1-prime.gif > f after passing it

Answers

F PS-10-1-prime.gif > f before passing the horn, f PS-10-1-prime.gif < f after passing it describes the frequency f PS-10-1-prime.

Hence, Option A is correct.

The Doppler effect causes the frequency heard by the railcar passenger prior to passing the horn to be higher than the real frequency of the sound released, whilst the frequency heard after passing the horn is lower than the actual frequency. This is why the answer to this question is A. A railcar is a self-propelled passenger-carrying railroad vehicle. A train with a single coach and a driver's cab at one or both ends is typically referred to as a "railcar." Such vehicles are referred to as "railmotors" by several railway companies, including the Great Western.

To know more about railcars here

https://brainly.com/question/14652521

#SPJ4

the force exerted on the rope by the ceiling is in the _____ direction.

Answers

The force exerted on the rope by the ceiling is in the vertical direction. This means that the force is pushing straight down on the rope and is perpendicular to the plane of the ceiling.

The force exerted on the rope by the ceiling is the result of the gravity of the rope itself and the weight of any objects or materials that are attached to the rope.

In order for the force to remain in the vertical direction, the rope must be secured at the top of the ceiling and not allowed to move in any other direction. If the rope were to move in any other direction, the force exerted on the rope by the ceiling would no longer be in the vertical direction and the rope would no longer remain secure.

Learn more about force:

https://brainly.com/question/25239010

#SPJ4

two objects gravitationally attract with a force of 36 N if the distance between the two objects centers is decreased by a factor of threee then the new force of attraction is

Answers

The new force of attraction is 324N if the distance between the centres of the two objects is reduced by a factor of 3e.

The equation for the force of gravitational attraction between two objects is: F = G*(m1*m2)/r^2 Where F is the force of attraction, G is the gravitational constant (6.67 x 10^-11 Nm^2/kg^2), m1 and m2 are the masses of the two objects, and r is the distance between their centers. If the distance between the two objects' centers is decreased by a factor of three, the new force of attraction will be: F' = G*(m1*m2)/(r/3)^2The ratio of the new force of attraction to the original force of attraction is:

F'/F = (r/3)^2 If we substitute in the original force of attraction, we have:

F'/36 = (r/3)^2 = F' = 36 * (r/3)^2

As we decrease the distance by a factor of 3, the new force of attraction will increase by a factor of 9.

F' = 36*9 = 324 N

Therefore, the new force of attraction is 324 N.

Learn more about gravitational attraction here:

https://brainly.com/question/19822389

#SPJ4

Other Questions
You can perform 6 push-ups in 16 seconds. Write andgraph an equation that represents the relationship betweentime and the number of push-ups. At this rate, how manypushups can you perform in 2 minutes? Code to be written in python:Correct code will automatically be awarded the brainliestYou had learnt how to create the Pascal Triangle using recursion.def pascal(row, col):if col == 1 or col == row:return 1else:return pascal(row - 1, col) + pascal(row - 1, col - 1)But there is a limitation on the number of recursive calls. The reason is that the running time for recursive Pascal Triangle is exponential. If the input is huge, your computer won't be able to handle. But we know values in previous rows and columns can be cached and reused. Now with the knowledge of Dynamic Programming, write a function faster_pascal(row, col). The function should take in an integer row and an integer col, and return the value in (row, col).Note: row and col starts from 1.Test Cases:faster_pascal(3, 2) 2faster_pascal(4, 3) 3faster_pascal(100, 45) 27651812046361280818524266832faster_pascal(500, 3) 124251faster_pascal(1, 1) 1 PLEASE HELP ME A.S.A.P! btw the activity is in Arabic. Which of the following is a treatment option for endometriosis?O A.Pain relieversO B.Hormone therapyO C. SurgeryOD.All of the above Which statements describe reasons native-born Americans wanted to restrict immigration to the United States in the late 1800s? pls help i will give brainliest to the correct answer!! :) about past tense in French Asap pls explain me all of the things you know about past tense in French.It has to be in a sentence for each thing about past tenses.With easy words! PLEASE HELP ME I WILL GIVE BRAINIEST IM STUDYING HELP A PERSON OUT NO SCAMMSSS>S>>S What are the 3 steps for treating a chemical burn? Justin invested $7,300 in an account paying an interest rate of 1.5% compoundedquarterly. Assuming no deposits or withdrawals are made, how long would it take, tothe nearest tenth of a year, for the value of the account to reach $8,560? In order to develop antibiotics, scientists need to understand how bacteria grow and reproduce. One factor that is essential for bacterial growth and reproduction is protein synthesis. By understanding how bacteria synthesize proteins, scientists can then attempt to develop antibiotics that block bacterial protein synthesis during an infection.Which of the following questions will best direct an investigation on how to develop an antibiotic that inhibits protein synthesis in bacteria?A. How can the formation of covalent bonds between amino acids be blocked?B. How can the formation of hydrogen bonds between amino acids be blocked?C. How can the phosphate end of the growing polypeptide chain be blocked?D. How can the hydroxyl end of the growing polypeptide chain be blocked? What is the common difference for this arithmetic sequence? 45, 40,35, 30.25,... Selected Balance Sheet Information Dec. 31, 2019 Dec. 31, 2018Cash $20,000 $17,500 Accounts receivable 10,500 8,000 Inventory 18,000 21,000 Accounts payable 15,000 10,000 Income taxes payable 1,000 2,500 Burch Company Income Statement For the year ended December 31, 2019 Sales $250,000 Cost of goods sold (160,000) Depreciation expense (15,000) Other expenses (35,000) Income tax expense (12,000) Net income $28,000Required: Compute the net cash flows from operating activities using the indirect method. What is the difference between direct and indirect? Across2. Russia and Austria wanted to control thebalkanPeninsula.5. TheEmpire joinedGermany in WWI.7. When larger nations control weaker regions.8. The goal of many nations to have the mostpowerful military was calledDown1. The Allies of War I were also calledthe Triple3. Radical devotion to one's country andlooking down on other countries.4. In WW I, there was an "arms race" focusedpower.on6. GavriloassassinatedArch Duke Franz Ferdinand. Use algebra tiles to solve 2x + 1 = 9 on IXL Math homework help please I will love you so much whoever can answer this please A gas at 110 C exerts a pressure of 225 torr in a sealed container. The temperature drops to 65 C. What is the pressure of the gas at the cooler temperature? Valentina is choosing cutlery with which to eat dinner. There are 2 knives and 10 forks tochoose from. How many different cutlery sets can Valentina choose?cutlery sets