Without inertia, how would an object that is experiencing a centripetal force behave? it would move in a line away from the circle’s center. it would move in a line toward the circle’s center. it would move in a curved, circular path. it would move in a line tangent to the circular path.

Air is contained in a variable-load piston-cylinder device equipped with a paddle wheel. initially, air is at 400 kpa and 17°c. the paddle wheel is now turned by an external electric motor until 75 kj/kg of work has been transferred to air. during this process, heat is transferred to maintain a constant air temperature while allowing the gas volume to triple. calculate the required amount of heat transfer in kj/kg.