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Q. Suppose a heat engine takes in 420 J of energy from a hot reservoir and performs 30 J of work in each cycle.
(i) Find the efficiency of the engine.
(ii) Find the energy expelled to the cold reservoir in each cycle.
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Question: One type of BB gun uses a spring-driven plunger to blow the BB from its barrel. (a) Calculate the force constant of its plunger's spring if you must compress it 0.130 m to drive the 0.0580-kg plunger to a top s ...
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