Which object has the greatest kinetic energy? A a truck with a mass of 3,500 kg moving at 30 m/s

B a person with a mass of 73 kg running 6 m/s

C a locomotive engine with a mass of 205,000 kg moving 5 m/s

D a fast pitched baseball with a mass of .5 kg moving at 46.9 m/s

An ideal otto cycle has a compression ratio of 8. at the beginning of the compression process, air is at 95 kpa and 27°c, and 750 kj/kg of heat is transferred to air during the constant-volume heat-addition process. assuming constant specific heats at room temperature, determine (a) the pressure and temperature at the end of the heat-addition process, (b) the net work output, (c) the thermal efficiency, and (d) the mean effective pressure for the cycle. (4390 kpa, 1730 k; 423 kj/kg; 56.4%; 534 kpa)