What is the angle of incidence if the total angle between the incidence ray and reflected ray is 70⁰​

Explanation:

[tex]w = mg \\ w = 25kg \times 9.8 \frac{m}{s} ^{2} \\ w = 245\\ [/tex]

Answer:

Mechanization   perhaps

Explanation:

Answer:

the answer is equal to the wave make up ultraviolet light.

Answer:

0.25 m

Explanation:

 λ = v/f

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It is true that as the distance d between a planet and a moon is increased, the strength of tidal forces decreases linearly (i.e., the strength of tides scales as 1.

Tidal force is the gravitational force that a body on a linear motion experiences which pull the body towards the center of the mass of another varying body because of the gravitational pull of that body at a distance.

Therefore, It is true that as the distance d between a planet and a moon is increased, the strength of tidal forces decreases linearly (i.e., the strength of tides scales as 1.

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Answer:

Thrust / Lift / Gravity

Explanation:

He must create enough force of thrust to jump for a short time and gravity pulls him back down almost immediately.

Answer:

gravity and resistance, the man is moving so the force is unbalanced

Explanation:

Answer:

a variant can cause a protein to malfunction or to not be produced at all.

Answer:

option d is your answer

Explanation:

you can find the complete solution in the given attachment

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Answer:

Conduction is the process by which heat energy is transmitted through collisions between neighboring atoms or molecules

Explanation:

Answer:

Explanation:

The slope of the graph is the spring constant     n/m

Answer:

w = 40 Joules

Explanation:

Formula to get work:

W = F × S

where:

w = work/Joules

F = force/newtons

s = displacement/meters

substitute:

w = 20 × 2

w = 40J

Answer:

The liver filters the blood of toxins before it continues through the body. It also removes excess sugar from the arteries. Your kidney then further filters the blood for water-soluble waste and toxins to be excreted and finally, your bladder gets read of that water-soluble waste.

Answer:

Yes, the driver has traveled far enough to reach the office.

Explanation:

Starting at 50 km/h you can break the 50 into 4 sections (50/4 or 1/4 of 50) and that will get you 12.5

45 minutes are 3/4 of an hour which is 50 km/h.

12.5*3=37.5 km (37.5>30)

Answer:

C is radius of sphere

Explanation:

F is C/2

Answer:

273,000 Astronomical Units.

Explanation:

4.3 light years = 40,850,000,000,000 kilometeres, 4.3 x 9,500,000,000,000.

Convert kilometers to astronomical unit:

149,597,870 kilometers = 1 AU, convert unit.

40,850,000,000,000 divided by 149,597,870 = 273,065.385222 or approx. 273,000 AU.

Answer:

When the circuit is not connected, the pointer of the ammeter or voltmeter is exactly at zero, thus said to be the instrument has zero error. If the pointer is above the zero mark, the zero error is negative.

The speed of the sound wave after the flash was seen, in the experiment for measuring the speed of sound gun is 110 m/s.

The speed of the sound wave can be determined by applying the principle of echoe as shown below;

v = 2d/t

where;

v = (2 x 715) / (13)

v = 110 m/s

Thus, the speed of the sound wave after the flash was seen, in the experiment for measuring the speed of sound gun is 110 m/s.

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Answer:

Voyager 1 and 2

Explanation:

Answer:

Explanation:

I guess so because it has ingredients such as froot loops, frosted flakes, and such plus its liquid.

Answer:

b

Explanation:

it indicate direction of baseball

Answer:

7.481W

Explanation:

power= work done÷time

power= force × uniform velocity

a= ∆v/t

29.0ms=

[tex]29 \times {10}^{ - 3 } s [/tex]

=(0.72-0)÷29×10^-3

a=24.83m/s^2

Newton's second law

f=ma

=(0.84×24.83)

=20.86N

w=FD

v^2=u^2+2as

0.5184=0+49.66s

s=0.0104m

20.86×0.0104

=0.216944J

0.216944÷t

P=7.481W

F_net:-

Now

Apply Newton's second law

Explanation:

Parallel circuits are used in wiring almost everything in buildings. You use them to turn on the lights in a room, Use a blow dryer, or plug anything into an outlet

Answer:

The earth revolves around the sun in a plane called the ecliptic.

The poles of the earth are at an angle of about 23.5 deg from the ecliptic.

If the north pole is tilted at 23,5 deg towards a perpendicular to this plane (ecliptic) the south pole will be tilted at 23.5 deg away from this plane and will receive the least amount of sunshine.

This is called the summer solstice in the northern hemisphere. and occurs around June 21.

Answer:

Distance between them  (r^2 )

Explanation:

F = C q1q2/r^2

The center of mass is the point located in an average position concerning the objects' positions and their masses. (a/3;a/3) is the location of the COM.  

The center of masses of a given system of particles or objects is the position under which all external forces are acting. Any uniform force acts on this point.

This position is the average position of all the components of the system concerning their masses. It can be placed in one, two or three dimensions according to the system.

Coordinate X of the center of masses is given by the following formula,

Xcom = Σ(Ximi) / Σmi

This is the adition (Σ) of each particle position on the X-axis (Xi) multiplied by their mass (mi), and the result divided by the summation of all masses -total mass-.

In the same way, coordinate Y of the center of masses is given by the following formula,

Ycom = Σ(Yimi) / Σmi

This is the adition (Σ) of each particle position on the Y-axis (Yi) multiplied by their mass (mi), and the result is divided by the summation of all masses.

The center of masses is located in the position (X, Y).

According to this framework, we can get the coordinates of the center of masses for this bidimensional system. Coordinates can be expressed in meters or centimeters (m or cm).

Data:

     Particle ⇒ (X;Y)

Coordinate X  ⇒  Xcom =  Σ(Ximi) / Σmi

                             Xcom =  (0m) + (0m) +(am) / m +m +m

                             Xcom =  am / 3m

                             Xcom =  a/3

Coordinate Y  ⇒  Ycom =  Σ(Yimi) / Σmi

                             Ycom =  (am) + (0m) +(0m) / m +m +m

                             Ycom =  am / 3m

                             Ycom =  a/3

Coordinates of the center of masses, (X;Y) = (a/3 ; a/3)

(a/3 ; a/3) is the location of the center of mass in the proposed bidimensional system.

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Answer:

h f = W + KE

Input energy equals work function plus KE of emitted electron

W = 6.63E-34 * 2.5E15 - 6.3 * 1.6E-19

W = 6.63 * 2.5 * 10^-19 - 10.1 * E-19 ev     (1ev = 1.6E-19 J)

W = (16.6 - 10.1)E-19 = 6.5E-19 J

h f = 6.5E-19 J        for electrons to be emitted with zero KE

f = 6.5E-19 / 6.63E-34 = .98E-15 / sec = 9.8E-14 / sec  (threshold)

Answer:

it should be 21,3 kilometer