An airplane accelerates with (7.33 i 0 j) m/s2 from an initial velocity (200 i 0 j) m/s for a distance of (1.20 i 0 j)km. What is the final velocity in m/s

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.