A drilling machine of power P watts is used to drill a hole in copper block of mass M kg. If the spcific heat of coper is `sjkg^(-1) .^(@)C^(-1)` and 40% of the powder is lost due to theating of the machine, the rise in the temperature of the block in T seconds will be (in `.^(@)C`)

A 15kW drilling machine is used to drill a bore in a small aluminium block of mass 10 kg. Assuming 50% power is used up in heating the machine itself or lost to the surroundings then, the rise in temperature of the block in 2 minutes is (Specific heat capacity of aluminium =0.91 J g^-1^@C^-1 )

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) )

A 10 kW drilling machine is used to drill a bore in a small aluminium block of mass 8 kg. Find the rise in temperature of the block in 2.5 minutes, assuming 50% power is used up in heating the machine itself or lost to the surropundings. (Specific heat of aluminium = 0.91 J g^(-1).^(@)C^(-1) )

A 10 kW drilling machine is used to drill a bore in a small aluminium block of mass 8 kg. Find the rise in temperature of the block in 2.5 minutes, assuming 50% power is used up in heating the machine itself or lost to the surropundings. (Specific heat of aluminium = 0.91 J g^(-1).^(@)C^(-1) )