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A student heated 20kg of water to a temperature of 80°c,he then added Wkg of...

A student heated 20kg of water to a temperature of 80°c,he then added Wkg of water at 15°c and the final steady temperature of mixture is 40°c given that specific heat capacity of water is 4.2J/g/k. Determine the value of w?
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Asked by Bintan on 31st May, 2021
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