the range of a cannonball fired horizontally from a laboratory table is equal to 8/3 times the height of the table. what is the direction of the velocity of the projectile as it strikes the ground?​

Light that is polarized along the vertical direction is incident on a sheet of polarizing material. only 96% of the intensity of the light passes through the sheet and strikes a second sheet of polarizing material. no light passes through the second sheet. what angle does the transmission axis of the second sheet make with the vertical?

The mass of a bowling ball is 10 kg and the mass of a ping pong ball is 0.015 kg. if the two objects are 5 meters apart, what is the gravitational force ?

What energy transformations occur each time the skateboarder rolls up the ramp?