A rifle is 2000 times as heavy as the bullet it fires. A bullet leaves the rifle at a velocity of 100metres per second . What is the recoil velocity of the rifle?

9.98 kg of r-134a at 300 kpa fills a rigid container whose volume is 14 l. determine the temperature and total enthalpy in the container. the container is now heated until the pressure is 600 kpa. determine the temperature and total enthalpy when the heating is completed. use data from the steam tables.

What are the similarities & differences between a thermistor and a light dependent resistor in physics?

During a car accident, a 125kg driver is moving at 31m/s and in 1.5s is brought to rest by an inflating air bag. what is the magnitude of the change in momentum to the driver