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Energy in Gravitational Systems
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Physics
12.49 Energy in Gravitational Systems
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During a gravity-assist flyby, a spacecraft gains heliocentric mechanical energy. Which statement is most accurate?
A
Energy is created because gravity is stronger near the planet.
B
The planet loses a tiny amount of heliocentric mechanical energy, so total energy is conserved for the larger system.
C
The spacecraft gains energy without any other object's energy changing.
D
The spacecraft's energy relative to every reference frame must remain unchanged.
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