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Q. 5

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Physics for Scientists and Engineers: A Strategic Approach with Modern Physics
Found in: Page 353

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Short Answer

The International Space Station orbits above the surface of the earth. What is the gravitational force on a sphere inside the International Space Station?

The gravitational force on the sphere inside the International Space Station is

See the step by step solution

Step by Step Solution

Step 1 : Given information.

Height at which International Space Station orbits = , mass of sphere =

Step 2 : Calculation.

Height of the ball:

Mass of the ball:

Mass of earth:

Radius of earth:

Universal gravitational constant:

The formula to be used is :

Step 3 : Continuation of calculation.

The distance between the center of earth to the center of the ball is :

So, the gravitational force on the ball due to earth is :

Step 4 : Final answer.

The gravitational force on the sphere inside the International Space Station is

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