Two planets (X and Y) that are far apart have the same mass, but planet Y has a radius three times that of planet X. If a is the magnitude of the acceleration due to gravity on the surface of planet X, what is the magnitude of the acceleration due to gravity on the surface of planet Y?

Amagnetic field applies forces on: a)static chargesb)moving chargesc)water flow

Which of the following is not a physical property of mattera. melting pointb.heat of combustionc. viscosityd. boiling point

Ben (55kg) is standing on very slippery ice when junior (25kg) bumps into him. junior was moving at a speed of 8 m/s before the collision and ben and junior embrace after the collision. find the speed of ben and junior as they move across the ice after the collision. give the answer in m/s. describe the work you did to get the answer.