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A bullet of mass 10g travelling horizont...

A bullet of mass 10g travelling horizontally at `200m//s` strikes and embeds in a pendulum bob of mass 2.0 kg.
(a) How much mechanical energy is dissipated in the collision?
(b) Assuming that `C_v` for the bob plus bullet is 3R, calculate the temperature increase of the system due to the collision. Take the molecular mass of the system to be `200g//mol.`

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