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Question on: WAEC Physics - 2000

A piece of metal of mass 50g is cooled from 80^oC to 20^oC. Calculate the amount of heat lost. (specific heat capacity of the material of metal = 450Jkg^-1K^-1)

4.50 x 10³J

2.25 x 10³J

1.80 x 10³J

1.35 x 10³J

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Correct Option: D

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