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# Energy Units

APPH12-V9WQ4C

Which one of the following units for measuring energy is not equal to the other three units?

A

$\text{joule}$

B

${ \text{kilogram} \cdot { \text{meter} }^{ 2 } }/{ { \text{second} }^{ 2 } }$

C

$\text{calorie}$

D

$\text{watt} \cdot \text{second}$