A cannon fires a ball upward at 60m/s. How fast will this ball be moving after 4s? (6 Points)
-60m/s
Om/s
40m/s
20m/s

A1kg cart slams into a stationary 1kg cart at 2 m/s. the carts stick together and move forward at a speed of 1 m/sl. determine whether kinetic energy was conserved in the collision. use the law of conservation of energy to explain the collision

Describe the function of the endomembrane system? what organelles are involved?

Why do different substances have diffrent properties