50. « A baseball player hits a 2 kg ball that is approaching with a velocity of 45 m/s. After making contact with the
bat, the ball has a velocity of 40 m/s in the opposite
direction. Seconds later, the ball is caught by an outfielder.
Who imparts a greater impulse on the ball, the batter or
the outfielder?

An electron and a proton have the same kinetic energy upon entering a region of constant magnetic field and their velocity vectors are perpendicular to the magnetic field. suppose the magnetic field is strong enough to allow the particles to circle in the field. note: you'll need to look up the masses for an electron and proton. 1) what is the ratio of the radii of their circular paths rp/re?

Ineed asap! list 3 examples in which friction us or makes things easier in our daily life. explain the effect of friction for each. *make sure you explain the effect of friction for each example! *

Ametal ball with a mass of 0.028 kg is dropped from rest at a height of 1.0 meters above the ground. assuming the energy in the ball is conserved, how much kinetic energy will the ball have when it is 0.5 meters above the ground?