A brick weighing `4.0 kg ` is dropped into a `1.0m` deep river from a height of `2.0m`. Assuming that `80%` of the gravitational potential energy is finally converted into thermal energy, find this thermal energy in calorie.A. `15`B. `17`C. `23`D. `27`

A brick weighing `4.0 kg ` is dropped into a `1.0m` deep river from a

1.	A brick weighing `4.0 kg ` is dropped into a `1.0m` deep river from a height of `2.0m`. Assuming that `80%` of the gravitational potential energy is finally converted into thermal energy, find this thermal energy in calorie.A. `15`B. `17`C. `23`D. `27`
Answer» Correct Answer - C `W=JHimplies(80)/(100)(mgh)=JQ`

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A brick weighing `4.0 kg ` is dropped into a `1.0m` deep river from a height of `2.0m`. Assuming that `80%` of the gravitational potential energy is finally converted into thermal energy, find this thermal energy in calorie.A. `15`B. `17`C. `23`D. `27`

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