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A particular engine has a power output of 6.00 kW and an efficiency of 21.0%. Assume the engineexpels 8500 J of energy in each cycle.
(a) Find the energy absorbed in each cycle.
kJ
(b) Find the time required to complete each cycle.
s
landing on the moon a spacecraft fires its rockets and comes to a complete stop just 16 meters above the lunar surface.
during each cycle a refrigerator ejects 605 kj of energy to a high-temperature reservoir and takes in 545 kj of energy
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What must be the orbital speed of a satellite in a circular orbit 800 above the surface of the earth
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