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VashaNatasha [74]
3 years ago
8

Help ;-;

Physics
1 answer:
nasty-shy [4]3 years ago
3 0

Answer:

all qn 1,2,3 have same answer ,. Yes,. hope it helps

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The equation for the speed of a satellite in a circular orbit around the earth depends on mass. Which mass?
katovenus [111]
<h3><u>Question: </u></h3>

The equation for the speed of a satellite in a circular orbit around the Earth depends on mass. Which mass?

a. The mass of the sun

b. The mass of the satellite

c. The mass of the Earth

<h3><u>Answer:</u></h3>

The equation for the speed of a satellite orbiting in a circular path around the earth depends upon the mass of Earth.

Option c

<h3><u> Explanation: </u></h3>

Any particular body performing circular motion has a centripetal force in picture. In this case of a satellite revolving in a circular orbit around the earth, the necessary centripetal force is provided by the gravitational force between the satellite and earth. Hence F_{G} = F_{C}.

Gravitational force between Earth and Satellite: F_{G} = \frac{G \times M_e \times M_s}{R^2}

Centripetal force of Satellite :F_C = \frac{M_s \times V^2}{R}

Where G = Gravitational Constant

M_e= Mass of Earth

M_s= Mass of satellite

R= Radius of satellite’s circular orbit

V = Speed of satellite

Equating  F_G = F_C, we get  

Speed of Satellite V =\frac{\sqrt{G \times M_e}}{R}

Thus the speed of satellite depends only on the mass of Earth.

6 0
3 years ago
Which object will be the easiest for a magnet to pull? a 1-gram piece of paper, a 2-gram eraser, a 3-gram steel paper clip, a 4-
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Steel paper clip because it can be moved by the magnet and it is lighter than the iron nail
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What do we call the minimum energy that is required by an electron to leave the metal target in the photoelectric effect?Select
Sergio [31]
The work function is what we call the minimum energy that is required by an electron to leave the metal target in the photoelectric effect. 
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Please list the following for the Element, HYDROGEN
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Answer:

1 Proton, 1 Electron, No Neutrons

Group 1, Period 1

Gases

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At what rate does gravity cause objects to accelerate at sea level on earth
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The acceleration due to gravity on Earth is 9.8 m/s per second.

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