A Spacecraft (Mass = M) Orbits a Planet (Mass =

question 33

Multiple Choice

A spacecraft (mass = m) orbits a planet (mass = M) in a circular orbit (radius = R) . What is the minimum energy required to send this spacecraft to a distant point in space where the gravitational force on the spacecraft by the planet is negligible?

• A) GmM/(4R)
• B) GmM/R
• C) GmM/(2R)
• D) GmM/(3R)
• E) 2GmM/(5R)

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Financial incentives or reductions in interest payments designed to encourage borrowing or to alleviate the burden of interest costs.

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