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A 10kw drilling machine is used for 5 mi...

A 10kw drilling machine is used for 5 minutes to bore a hole in an aluminium block of mass `10xx10^(3)kg`. If 40% of the work done is utilised to raise the temperature of the block, then find the raise in temperature of the aluminium block?
(Specific heat of Aluminium `=0.9 Jkg^(-1)k^(-1)`)

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