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A small sphere falls from rest in a visc...

A small sphere falls from rest in a viscous liquid. Due to frication, heat is produced. Find the relation between the rate of production of heat and the radius of the sphere at terminal velocity.

A

`r^(5)`

B

`r^(2)`

C

`r^(3)`

D

`r^(4)`

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The correct Answer is:
A
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