Aflexible container at an initial volume of 7.14 l contains 8.51 mol of gas. more gas is then added to the container until it reaches a final volume of 13.5 l. assuming the pressure and temperature of the gas remain constant, calculate the number of moles of gas added to the container.

Eddy whose mass is 55kg climbs up the 1.50 meter high stairs in 2s.calculate eddy’s power rating

What is the coefficient of kinetic friction μk between the block and the tabletop?

An engine undergoes a cycle as shown in the diagram. during a complete cycle the work done by the gas is 28.5×103 j and the energy transferred thermally out is 99.4×103 j. there are 1.5×1024 gas molecules and they have three active degrees of freedom. 6. (6 pts) during which process(es) is energy transferred thermally into the gas? a. 1→2 b. 2→3 c. 4→1 d. 1→2 and 4→1 e. none of the above