What is the power of a machine which does 1000 joules of work in 10 seconds ?

What is the efficiency of a machine if, of the 1000 J of work done by the effort, 200 J are done in overcoming friction?

The highest power of 7 which divides 1000 ! is

A system is given 300 calories of heat and it does 600 joules of work. How much does the internal energy of the system change in this process (J=4.18 "joules"//cal)

A system is given 300 calories of heat and it does 600 joules of work. How much does the internal energy of the system change in this process (j=4.18joules/cal)

What is the power of a body which is doing work at the rate of one joule per second?

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

A system is given 400 calories of heat and 1000 Joule of work is done by the system, then the change in internal energy of the system will be

What is the emissive power of a perfect blackbody at 1000 K ?

What is the power transferred per unit volume into joule heat in a resistor ?

In a thermodynamic process pressure of a fixed mass of a gas is changed in such a manner that the gas releases 30 joules of heat and 10 joules of work was done on the gas. If the initial internal energy of the gas was 30 joules , then the final internal energy will be