Assume efficiencies of the heating equipment and lifting equipment

Posted on 2014-01-20 12:10:00 in Engineering by BEVIS-*&^

Find the amount of electrical energy expanded in raising the temperature of 45 litres of water by 75^oC. To what height could a weight of 5 tonnes can be raised with the expenditure of the same energy? Assume efficiencies of the heating equipment and lifting equipment to be 90% and 70% respectively.

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