Which of the following statements are true? A. Mechanical energy is conserved because no dissipative forces perform work on the ball.
B. The forces of gravity and the spring have potential energies associated with them.
C. No conservative forces act in this problem after the ball is released from the spring gun.

the chart show the masses and velocities of two colliding objects that stick together after a collision.

according to the law of conservation of momentum, the momentum of the object after the collision is  

answer

1,500

kg • m/s.

the answer is f1 and d2 because if you put equal force on those two points the beam would balance trust me on this

the temperature in kelvin of 2.0 dm3 of an ideal gas is doubled and its pressure is increased by a factor of four. what is the final volume of the gas