Physics, 18.02.2020 02:40 archiecom55
A heat engine operates at 30% of its maximum possible efficiency and needs to do 995 J of work. Its cold reservoir is at 22 ÂșC and its hot reservoir is at 610 ÂșC. (a) How much energy does it need to extract from the hot reservoir? (b) How much energy does it deposit in the cold reservoir?
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Animals respond in various ways to stimuli detected through their senses. some of these responses are stimulated by the presence of danger. which of these animal responses is the best example of a response to an immediate threat? a) a rooster crows every morning at the first sign of light. b) as something approaches an octopus, it shoots a cloud of ink. c) from late fall until spring, bears hibernate to preserve energy. reactivate d) a dog is getting hot in the sunlight, so he moves to a shaded area.
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The junction rule describes the conservation of which quantity? note that this rule applies only to circuits that are in a steady state.
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A heat engine operates at 30% of its maximum possible efficiency and needs to do 995 J of work. Its...
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