Ahockey player hits a puck so that it comes to rest in 9 s after sliding 30 m on the ice. determine (a) the acceleration in terms of v.

How do you tell if someone actually cares about you? and just say they do?

The least penetrating form of radiation is

Asolid cylinder and a cylindrical shell have the same mass, same radius, and turn on frictionless, horizontal axles. the cylindrical shell has light-weight spokes connecting the shell to the axle. a rope is wrapped around each cylinder and tied to blocks of equal masses that are held the same height above the ground. both blocks are released simultaneously. the ropes do not slip. which block hits the ground first? or is it a tie?