A 15 g bullet is shot into a 5085 g wooden box standing on a frictionless surface. The block with a bullet and it requires a velocity of 1.8 m/s calculate the velocity of the boat before striking the block

Asap and show ! a 14 kg rock starting from rest free falls through a distance of 5.0 m with no air resistance. find the momentum change of the rock caused by its fall and the resulting change in the magnitude of earths velocity. earth mass is 6.0 * 10^24 kg. show your work assuming the rock earth system is closed.

Explain what happens at the saturation point when adding salt to water at room temperature.

Where do magnetic lines of force enter earth?