A softball traveling at 34 m/s has a kinetic energy of 98 J.

Calculate its mass.

calculate the height of the ball.

Calculate the power if ball stays in air for 1 mins

will give brainliestttt

Answers

Answer 1

Answer:

The mass=0.169

The height=57.8

The power=1.63 watts

Explanation:

The formula for mass is 2KE/v^2

v=34×34 KE=98 therefore 2*98/34^2=0.169

The formula for height is v^2/2g

v=34*34 therefore 34^2/2*10=57.8

The formula for power is work/time

in which the work is the kinetic energy =98

and time 1*60secs =60 therefore 98/60=1.63watts


Related Questions

Sample Response: When there is less rainfall, land, which is part of the geosphere, becomes dry. When there is not enough water, plants will not get the nutrients they need from the soil and animals will not get enough water, and they will die. Both plants and animals are part of the biosphere. Less precipitation would also mean less water in lakes and groundwater, parts of the hydrosphere, and less evaporation. The atmosphere may also be affected due to less water vaporWhich ideas did you include in your answer? Check all that apply.

Answers

grow alot of plants that's help to make more h2o

Answer:

Which ideas did you include in your answer? Check all that apply.

Droughts can cause the geosphere to be very dry.

Droughts can affect the survival of organisms in the biosphere.

Droughts can affect the amount of water in the hydrosphere.

Droughts can affect the amount of water vapor in the atmosphere.

Explanation:

Which of the five criteria that define minerals explains why polymorphs are actually different minerals?​

Answers

It’s
Cender
Quarter
Coin
Feldr
And round

What character flaw do you feel you have? What can you do to improve this?

Answers

Answer:

Character flaws that I feel I have are:

Shyness.Extremely reserved nature.Can't say "no".Trying to be perfect always.


A block of mass 0.4kg on a horizontal surface is attached to a horizontal spring of negligible mass. The other end of the spring is attached to a wall and there is neglig ble friction between the block and the horizontal
surface. The center of mass of the block is stretched a horizontal distance 0.25 beyond its equilibrium position and released from rest such that the block spring system undergoes simple harmonic motion. A graph
of the spring potential energy of the block spring system as a function of the horizontal position of the center of mass of the block is shown. The positive direction is considered to be to the right
of the force exerted by the spring on the block as a function of the block's horizontal position

Answers

A loaded spring undergoes simple harmonic motion whose period is proportional to the mass and inversely proportional to the spring constant.

What is simple harmonic motion?

Simple harmonic motion is the periodic motion of an object along a straight line, such that the acceleration of the object is directed towards a fixed point on that line and is proportional to its distance from that point.

Example of a simple harmonic motion is the motion of a loaded spiral spring.

The restoring force on the spring is directly proportional to the extension of the spring and the spring constant.

The period of motion, T when a mass, m is attached to a spring with spring constant k,is given as:

T = 2π√(m/k)

Therefore, a loaded spring undergoes simple harmonic motion whose period is proportional to the mass and inversely proportional to the spring constant.

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What is the unit force used in gravity calculations and why is it called this

Answers

Answer:

newtons per kilogram (n/kg)

Explanation:

It is named after Isaac Newton in recognition of his work on classical mechanics, specifically Newton's second law of motion.

At a depth of 30 m/99 ft, gas molecules in a flexible container will be packed ______ times more closely together than they will be at the surface.

Answers

The correct statement will be "At a depth of 30 m/99 ft, gas molecules in a flexible container will be packed four times more closely together than they will be at the surface."

What is a gas molecule?

Generally, a gas molecule is simply defined as a combination of numbers of atoms that are connected one to another.

In conclusion, The deeper gas molecules go in a surface the more compact they become

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In what part of the Milky way is our solar system located?

A) thick disk
B) thin disk
C) extreme disk
D) galactic halo

Answers

Answer:

D

Explanation:

I got it right


This property of matter describes
the relationship of mass to volume?

Answers

Density is a physical property that describes the relationship between mass and volume. Density is the amount of matter in a given space, or volume.

What happens to the period of a wave as the frequency increases?.

Answers

Explanation:

T=1/f

So if frequency increases the period will decrease

Saturn’s bright rings are located within the roche limit of saturn. This supports the theory that these rings:.

Answers

This supports the theory that these rings are formed from moons torn apart by tidal stress.

Write about planet saturn?

After Jupiter, the second-largest planet in the Solar System is Saturn. It's a giant planet with a radius around nine and a half times that of the Earth.

Saturn is only one-eighth the average density of Earth, yet it is 95 times more massive due to its bigger volume.

Saturn’s bright rings are located within the Roche limit of Saturn. This supports the theory that these rings are formed from moons torn apart by tidal stress.

Hence this supports the theory that these rings are formed from moons torn apart by tidal stress.

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Two light waves, initially emitted in phase, will interfere constructively with maximum amplitude if the path-length difference between them is:

Answers

Two light waves will interfere constructively if the path-length difference between them is a whole number.

SUPERPOSITION

The principle of superposition state that, when two or more waves meet at a point, the resultant displacement at that point is equal to the sum of the displacements of the individual waves at that point.

Interference of waves can either be constructive, or destructive.

The two light waves, initially emitted in phase, will interfere constructively with maximum amplitude if the path-length difference between them is a whole number of wavelenght 1λ, 2λ, 3λ, 4λ etc

The equivalent phase differences between the waves will be 2[tex]\pi[/tex] or 360 degrees, 4[tex]\pi[/tex] or 720 degrees, 6[tex]\pi[/tex] 1080 degrees etc

Therefore, the two light waves, initially emitted in phase, will interfere constructively with maximum amplitude if the path-length difference between them is a whole number.

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how does a thermal mass store energy

Answers

Answer:

thermal mass is the ability of a material to absorb, store and release heat... Materials such as concrete, bricks, and tiles absorb and store heat, And then they have Thermal mass.

Explanation:

Hope this helps! Please let me know if you need more help or think my answer is incorrect. Brainliest would be MUCH appreciated. Also remember to rate answers to help other students, While leaving thanks to answers that help you. Have a great day!

The hard outer covering of an animal is a

Answers

The covering on the outside of certain animals is the exoskeleton


A police car siren emits a
frequency of
2010 Hz when stationary. Another car
hears a 1920
1920 Hz sound when it drives
away from the stationary police car.
How fast is the second car driving?

Answers

Answer: 15.35 m/s

Explanation: 15.35 m/s

[tex]$$From the Doppler effect$$f^{\prime}=\left(\frac{v \pm v_{0}}{v \pm v_{s}}\right) f_{s}$$[/tex]

[tex]\begin{aligned}&f^{\prime}=1920 \mathrm{~Hz} ; \ \ V=343 \mathrm{~m} / \mathrm{s} \\&f=2010 \mathrm \ \text{{H}z} \\&V_S=0 \text { As police car is stationary }\end{aligned}[/tex]

[tex]\begin{aligned}1920 &=\left(\frac{343 \pm v_{0}}{343}\right) \times 2010 \\1920 &=\left(\frac{343-v_{0}}{343}\right) \times 2010 \\ -v_{0} &=-15.35 \mathrm{~m/s} \\v_{0} &=15.35 \mathrm{~m} / \mathrm{s}\end{aligned}[/tex]

Therefore, the second car is driving at 15.35 m/s

hello people ~
please help me with this question ^^​

Answers

Equilateral triangle means each interior angle has measure 60°

We need the resultant which is our dipole

[tex]\\ \rm\Rrightarrow R=\sqrt{A^2+B^2+2ABcos\theta}[/tex]

[tex]\\ \rm\Rrightarrow R=\sqrt{(q\ell)²+(q\ell)²+2(q\ell)(q\ell)cos60°}[/tex]

[tex]\\ \rm\Rrightarrow R=\sqrt{(q\ell)^2+(q\ell)^2+(q\ell)^2}[/tex]

[tex]\\ \rm\Rrightarrow R=\sqrt{3(q\ell)^2}[/tex]

[tex]\\ \rm\Rrightarrow R=\sqrt{3}{q\ell}[/tex]

An object is at rest on a tabletop. Earth pulls downward on this object with a force equal in magnitude to mg. What is the interaction pair to this force

Answers

Answer:

normal contact force

Explanation:

that is the equal and opposite force (as to weight) applied by the table on to the object.

The gravitational force of the earth on the object and the reaction force of the table on the object interact as a pair of forces.

What does gravity mean?

The gravitational force is what pulls things with mass in the same direction. People commonly think about the Earth's gravitational pull. Your body is kept on the ground by this force. Yet, gravity pulls all objects with mass in the same direction.

The gravitational force, or g, is the force that the earth exerts on an object, with g equal to 9.8 m/s2.

The information is ,

Place something on the table.

Now that the item is at rest, a force known as gravitational force pushes it downward from the Earth.

The formula for gravitational force is F = mg, where m is the object's mass.

Moreover, Newton's third law states that every action will always have a corresponding and opposing reaction. When the gravitational force acting between two masses is equal in strength and conducted in the opposite direction, an action and reaction pair is produced.

The reaction force is then given by R = -mg, where m is the object's mass and the negative sign denotes that the force is acting in the opposite direction to that of gravity by earth.

Hence , the interaction pair for gravitational is the reaction force

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What is the composition of the sun?

Answers

Answer:

The sun is mainly made up of 75 percent hydrogen and 25 percent helium by mass; the sun's is also composed of less than 0.1 percent various metals and elements, including neon, iron, oxygen and carbon. These atoms form hot plasma that is interwoven with the sun´s magnetic fields.

Hope i helped :)

Explanation:

Assuming the radius of diatomic molecules is approximately 2.3 ×10-10 m for what pressure in Pa will the mean free path in room-temperature (20°C) nitrogen be 0.027 m? The Boltzmann constant is 1.38 × 10-23 J/K, Avogadro’s number is 6.02 × 1023 molecules/mole, and the ideal gas constant is R = 8.315 J/mol•K = 0.0821 L ∙ atm/mol ∙ K.

Answers

For a radius of diatomic molecules is approximately 2.3 ×10-10 m, the  pressure in Pa is mathematically given as

P=0.134Pa

What pressure in Pa will the mean free path in room-temperature (20°C) nitrogen be 0.027 m?

Generally, the equation for the ideal gas  is mathematically given as

PV=nRT

Therefore

[tex]P=\frac{1kT}{\sqrt{2}\pi(p)d^2}[/tex]

[tex]P=\frac{1.38*10^-23*293}{\sqrt{2}\pi*(2*1.3*10^{-10})^2)*0.1}[/tex]

P=0.134Pa

In conclusion, Pressure

P=0.134Pa

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Why is it difficult to define abnormal behavior?

Select all that apply.


There is a strict definition of abnormal behavior based on an established set of social norms.
There is a strict definition of abnormal behavior based on an established set of social norms.

People may engage in behaviors that appear abnormal but that are helpful for them to function in everyday life.
People may engage in behaviors that appear abnormal but that are helpful for them to function in everyday life.

Opinions differ on the characteristics that define normal mental health.
Opinions differ on the characteristics that define normal mental health.

Both public stigmas and self-stigmas are associated with labeling behavior as abnormal.

Answers

Answer: A. There is a strict definition of abnormal behavior based on an established set of social norms.

Forgive me if I’m wrong :C

If the astronaut throws the 3.20 kg tool with an acceleration of 5.90 m/s2 , what is the magnitude of the acceleration a of the astronaut during the throw

Answers

The magnitude of the acceleration a of the astronaut during the throw of the 3.2 kg tool is determined as (18.88)/m.

Force applied to the tool

Based on Newton's third law of motion, the force applied to the tool by the atronaut is equal to the force exerted on the astronaut by the tool.

Fa = - Fb

where;

Fa is force exterted by the astronautFb is force exterted by the tool

Fa = (3.2 x 5.9)

Fa = 18.88 N

Acceleration of the astronaut

Fa = m x a

where;

m is mass of the astronauta is the acceleration of the astronaut

a = Fa/m

a = (18.88)/m

Thus, the magnitude of the acceleration a of the astronaut during the throw of the 3.2 kg tool is determined as (18.88)/m.

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_________ quantities are measured with numbers and units, but also have a specific direction.

Answers

Answer:

Vectors

Explanation:

Vector quantities have magnitude and direction in a given vector space or field

An FM radio wave has a frequency of 7.98E+8 Hz. What is the wavelength of this electromagnetic wave?​

Answers

Answer:

.376 m

Explanation:

c = speed of light = 3 x 10^8 m/s

c = wavelength * freq

3 x 10^8 = 7.98 x 10^8  * f

f = .376 meters

What is responsible for Earth's seasons?



A. The Earth's proximity to the sun

B.The Earth rotating on its axis

C.The Earth revolving around the sun

D.The Sun emitting different intensities of light at different times of year

Answers

Answer:

I would say C

Explanation:

seasons are cause by the tilt in the Earths axis of rotation as it revolves around the sun.

What is the function (job) of the genes in protein synthesis (how proteins are made in the cell)?

Answers

Answer:

Most genes contain the information needed to make functional molecules called proteins. A few genes produce regulatory molecules that help the cell assemble proteins.

To build proteins, cells use a complex assembly of molecules called a ribosome. The ribosome assembles amino acids into the proper order and links them together via peptide bonds. This process, known as translation, creates a long string of amino acids called a polypeptide chain.

Explanation: Hope it helps you :)))))

Have a good day

A 250-turn generator with circular loops of radius 15 cm rotates at 60.0 rpm in a
magnetic field with a strength of 1.00 T.
a. What is the angular speed of the loops?
b. What is the area of one loop?
c. What is the maximum emf?
d. What is the rms emf?

Answers

(a) The angular speed of the loops is 6.284 rad/s.

(b) The area of one loop is 0.071 m².

(c) The maximum emf of the generator is 111.54 V.

(d) The rms emf of the generator 78.87 V.

Angular speed of the loop

The angular speed of the loop is calculated as follows;

[tex]\omega = 60 \ \frac{rev}{\min} \times \frac{2\pi \ rad}{1 \ rev} \times \frac{1 \min}{60 \ s} \\\\\omega = 6.284 \ rad/s[/tex]

Area of the loop

The area of the loop is calculated as follows;

A = πr²

A = π x (0.15)²

A = 0.071 m²

Maximum emf of the generator

emf(max) = NBAω

emf(max) = (250) x (1) x (0.071) x (6.284)

emf(max) = 111.54 V

Rms emf of the generator

[tex]V_{rms} = \frac{V_0}{\sqrt{2} } \\\\V_{rms} = \frac{111.54}{\sqrt{2} } \\\\V_{rms} = 78.87 \ V[/tex]

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How are jupiter, saturn, and uranus similiar? question 5 options: they are all large, gaseous planetary bodies. they are all planets that are the exact same size. they are all the same distance from the sun. they all have the exact same surface temperature.

Answers

Answer:

Explanation:

All of the planets listed are classified as "Gas Giants" due to them being much larger than the terrestrial rocky planets. They are also strictly composed of gaseous elements such as nitrogen, hydrogen, methane, etc.. Both A and B are correct. I am unsure if you can choose more than one.

Answer:

they are all large, gaseous planetary bodies

Explanation:

i took the quiz

If the distance to the water level in the well is doubled, is the time until you hear the splash twice what it was before, more than twice, or less than twice?

Answers

Echo is a reflection of sound waves.  If the distance is increased, we hear the sound in  more than twice the former time.

What is echo?

The term echo has to do with the reflection of sound waves. We know that when sound waves are reflected, we hear the sound as the echo.

Now, the time that it takes us to hear the echo depends on the distance between the observer and the depth of the well. If the distance is increased, we hear the sound in more than twice the former time.

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On top a coiled spring labeled wave a with coils, which are widely spaced then tightly spaced then widely space. on bottom a coiled spring labeled wave b with coils, which are widely spaced then very tightly spaced then widely space. which statement can be made about waves a and b? wave a has a lower amplitude than wave b. wave a has a higher amplitude than wave b. wave a has a lower frequency than wave b. wave a has a higher frequency than wave b.

Answers

Answer:

Wave A has a lower frequency than Wave B.

Explanation:

Frequency is the number of waves passing through the unit time.

As the statement of the question says that the coils in wave A are widely and tightly spaced.

While in wave B the coils are widely and very tightly spaced which means the number of coils is more and the frequency of wave B is more than wave A.

Therefore more coils will pass through a fixed point in unite time and more will be the frequency.  

Answer:Wave A has a lower frequency than Wave B.

Explanation: edge

A car of mass 1000kg is at the top of a 10 degree hill as shown. What is its gravitational potential energy relative to the bottom of the hill?.

Answers

The gravitational potential energy of the  1000kg car relative to the bottom of the hill is 1666L (J).

Potential energy of the car

The gravitational potential energy of the car relative to the bottom of the hill is calculated as follows;

P.E = mgh

where;

h is the vertical height of the hillm is mass of the car

Let the slant height of the hill,  = L

h = L sinθ

h = Lsin(10)

h = 0.17L

P.E = mg(0.17L)

P.E = 1000 x 9.8 x 0.17L

P.E = 1666L (J)

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If 9.467 A current is passing through a straight wire, what would be the magnetic field induced at a point 3.9 centimeter away from the wire

Answers

For a current is passing through a straight wire, the Magnetic field is mathematically given as,

B=5.535*10^5T.

What would be the magnetic field induced at a point 3.9 centimeter away from the wire?

Generally, the equation for the Magnetic field  is mathematically given as

[tex]B=\frac{\mu i}{ 2 \pi r}[/tex]

Therefore

[tex]B=\frac{4 \pi *10^{-7}*4.2.28}{2 \pi (1.6*10^-2)}[/tex]

B=5.535*10^5T

In conclusion, the magnetic field

B=5.535*10^5T

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