Abaseball bat is 32 inches (81.3 cm) long and has a mass of 0.96 kg. its center of mass is 22 inches (55.9 cm) from the handle end. you hold the bat at the very tip of the handle end (the knob) and let it swing in simple harmonic motion. what is the bat’s moment of inertia if its period of oscillation is 1.35 seconds?

Acylinder with a movable piston contains 11.7 moles of a monatomic ideal gas at a pressure of 1.32×10^5 pa. the gas is initially at a temperature of 300 k. an electric heater adds 43200 j of energy into the gas while the piston moves in such a way that the pressure remains constant. cp=20.79 j k^−1 mol^−1 for a monatomic ideal gas, and that the number of gas molecules is equal to avogadro's number (6.022×10^23) times the number of moles of the gas. (a) what is the temperature of the gas after the energy is added? (b) what is the change in volume of the gas? (c) how much work is done by the gas during this process?