An Artificial Earth Satellite Is Moved from a Circular Orbit

question 38

Multiple Choice

An artificial Earth satellite is moved from a circular orbit with radius R to a circular orbit with radius 2R.During this move:

• A)The gravitational force does no work.
• B)The gravitational force does positive work.
• C)The gravitational force does negative work.
• D)The work done by the gravitational force cannot be determined without knowing the path of the satellite.
• E)The work done by the gravitational force cannot be determined without knowing what force caused the satellite to change its orbit.