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A deflated hot-air balloon weighs a total of 8000 N. Filled with hot air, the balloonrises to a height of 1000 m. How much work is accomplished by the hot air
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What happens to light waves from a star as the star moves away from earth?
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6–48 bananas are to be cooled from 24 to 138c at a rate of 215 kg/h by a refrigeration system. the power input to the refrigerator is 1.4 kw. determine the rate of cooling, in kj/ min, and the cop of the refrigerator. the specific heat of banana above freezing is 3.35 kj/kg·8c.
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The direction of the current in an alternating current circuit remains constant. is direct. changes repeatedly. changes randomly.
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Physics, 22.06.2019 22:50, bigbrogamer
Which of the following statements correctly describes a transformer?
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A deflated hot-air balloon weighs a total of 8000 N. Filled with hot air, the balloonrises to a heig...
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