A body does 20 joules of work in 20 joules of work in 5 seconds. What is its power ?

Define 1 joule of work.

If the heart works 60 joules in one minute. What is its power?

A body does 1200 joules of work in 2 minutes. Calculate its power.

A machine does 392 J of work in 4 seconds. What is the power of the machine?

If the heart works 60 joules in one minute, what is its power ?

If the heart works 60 joules in one minute, what is its power ?

If a body possesses 980 joules of P.E. and 20 joules of K.E., then what is its total energy?

In a thermodynamics process, 300 joule of heat is supplied to a gas and 200 joule of work is done by the gas. What is the change in internal energy of the system?