a brick weighing 4 kg is dropped into a 1m deep river from a hieght of 2m . Assuming that 80% of the gravitational potential energy is finally converted into thermal energy, find this thermsl energy in calorie.
a brick weighing 4 kg is dropped into a 1m deep river from a hieght of 2m . Assuming that 80% of the gravitational potential energy is finally converted into thermal energy, find this thermsl energy in calorie.
aditi singh , 11 Years ago
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