The mechanical equivalent of heat J is | vedclass

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(C) The mechanical equivalent of heat,denoted by $J$,is a conversion factor used to relate the units of mechanical energy (joules) to the units of the

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$A$ conversion factor

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(C) The mechanical equivalent of heat,denoted by $J$,is a conversion factor used to relate the units of mechanical energy (joules) to the units of thermal energy (calories). Since $1 	ext{ calorie} = 4.186 	ext{ joules}$,the value of $J$ is approximately $4.186 	ext{ J/cal}$. It is not a physical quantity in the sense of having a dimension,but rather a constant factor that allows us to convert between different systems of units for energy.

The mechanical equivalent of heat $J$ is

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