I need help with this please

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

Explain why electric current cannot exist if a current doesn't have a voltage source.

If the new moon happens on january 15th, what shape will it be on february 6th?