An Artificial Earth Satellite of Mass M Is Moved from a Circular

question 41

Multiple Choice

An artificial Earth satellite of mass m is moved from a circular orbit with radius R to a circular orbit with radius 2R.If the mass of the Earth is M_E, the work done by the gravitational force is:

• A)zero
• B)GM_Em/R
• C)GM_Em/2R
• D)−GM_Em/R
• E)−GM_Em/2R

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