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On a winter day the temperature of the tap water is 20∘C whereas the room temperature is 5∘C. Water is stored in a tank of capacity 0.5 m3 for household use. If it were possible to use the heat liberated by the water to lift a 10 kg mass vertically, how high can it be lifted as the water comes to the room temperature ? Take g=10 ms−2 |
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Answer» On a winter day the temperature of the tap water is 20∘C whereas the room temperature is 5∘C. Water is stored in a tank of capacity 0.5 m3 for household use. If it were possible to use the heat liberated by the water to lift a 10 kg mass vertically, how high can it be lifted as the water comes to the room temperature ? Take g=10 ms−2 |
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