If an object travels on a circular path is an acceleration? What is changing to cause an acceleration?

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

Achlorine atom has 17 protons and 18 neutrons. what is its mass number? what is its atomic number?

Amagnetic field applies forces on: a)static chargesb)moving chargesc)water flow