At a pressure 43 kpa, the gas in a cylinder has a volume of 12 liters. assuming temperature remains the same, if the volume of the gas is decreased to 8 liters, what is the new pressure?

On a frictionless air track, a blue glider with mass 0.200 kg is moving to the right with a speed of 8.00 m/s. it strikes a red glider that has mass 0.600 kg and that is initially at rest. after the collision, the blue glider is moving to the left with a speed of 3.00 m/s.(a) what are the magnitude and direction of the velocity of the red glider after the collision? (b) is this collision elastic?