A person weighing 50 kg takes in 1500 kcal dict per day. If this energy were to be used in heating the body of person without any losses, then the rise in his temperature is ( specific heat of human body `= 0.83 calg^(-1)C^(-1)`)

A person weighing 60 kg takes in 2000 kcal diet in a day. If this energy were to be used in heating the person without any losses, his rise in temperature would be nearly (Given sp. Heat of human body is 0.83 cal g^(-1), .^@C^(-1)

50 gm of copper is heated to increase its temperature by 10^(@)C. If the same quantity of heat is given to 10 gm of water, the rise in its temperature is (Specific heat of copper =420 Joule-kg^(-1)@C^(-1)

A body of mass 5 kg falls from a height of 20 metres on the ground and it rebounds to a height of 0.2 m. If the loss in potential energy is used up by the body, then what will be the temperature rise? ("specific heat of material = 0.09 cal gm"^(–1@)"C"^(–1))

Certain amount of heat is given to 100 g of copper to increase its temperature by 21^@C . If same amount of heat is given to 50 g of water, then the rise in its temperature is (specific heat capacity of copper = 400 J kg^(-1) K^(-1) and that for water = 4200 J kg^(-1) K^(-1))

Certain amount of heat is given to 100 g of copper to increase its temperature by 21^@C . If same amount of heat is given to 50 g of water, then the rise in its temperature is (specific heat capacity of copper = 400 J kg^(-1) K^(-1) and that for water = 4200 J kg^(-1) K^(-1))

A body of mass 20 g at 100^(@)C is dropped into 200 g of water at 30^(@)C . What will be the final temperature of the mixture ? Specific heat of the material of the body ="0.1 cal. G"^(-1).^(@)C^(-1).

A body of mass 25 kg is dragged on a horizontal rough road with a constant speed of 20 kmh^(-1) . If the coefficient of friction is 0.5, find the heat generated in one hour. If 50% of the heat is absorbed by the body, find the rise in temperature. Specific heat of the material of the body is 0.1 cal g^(-1).^(@)C^(-1) .

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 )

Find the heat energy required to raise the temperature of 5 kg of water at 80^@C to 100^@C . (Specific heat of water is 1 cal g^(-1)""^(@)C^(-1) )

50 g of copper is heated to increase its temperature by 10^(@) C. If the same quantity of heat is given to 10 gm of water, the rise in temperdture is (specific heat of copper= 420 JKg^(-1) K^(-1) , specific heat of water = 4200 jkg^(-1) k^(-1))