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A 984-kg satellite orbits the Earth at a constant altitude of 106-km.
(a) How much energy must be added to the system to move the satellite into a circular orbit with altitude 209 km? MJ
(b) What is the change in the system's kinetic energy? MJ
(c) What is the change in the system's potential energy? MJ
Suppose 28.5 kg of 87.5°C water is placed in contact with 28.5 kg of 11°C water. What is the change in heat (in J) of the hot water
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