Atrain with a mass of 25000 kg increases it’s speed from 10 m/s to 25 m/s in 20 seconds. assume that the acceleration is constant and that you can neglect friction
what is the acceleration of the train

Argon is adiabatically compressed from an initial volume of 16 liters to a final volume of 2 liters. by what factor do the following quantities change? do they increase or decrease? (a) the rms speed (b) the thermal energy of the gas (c) the molar specific heat cv (d) the pressure