A train moves at a constant speed of 35 m/s. How long it will take for the train to move 102 m? a.3.5s
b.2.9s
c.0.87s
d.1 .7s

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

What is the most useful equation for electric power?

Imagine that someone pushes one marble toward a motionless marble. would there still be action-reaction forces involved in the collision? how might the marbles’ motions be changed? ?