A ball of mass 4.0 kg moving with an initial velocity of 2.0 meters per second to the right collides elastically with another ball of mass 6.0 kg moving within velocity of 4.0 meters per second to the left after the Collision the first ball is moving with a velocity of 5.2 m/s to the left. What is the velocity of the second ball after the collision?

The pressure, volume, and temperature of a mole of an ideal gas are related by the equation pv = 8.31t, where p is measured in kilopascals, v in liters, and t in kelvins. use differentials to find the approximate change in the pressure if the volume increases from 14 l to 14.6 l and the temperature decreases from 375 k to 370 k. (round the answer to two decimal places.)

Rohit is trying to tune an instrument

Arowboat passenger uses an oar to push the boat off the dock by exerting a force of 40n for 3.0s. what impulse acts on the boat.