Aparticle leaves the origin with a speed of 3.3 106 m/s at 34 degrees to the positive x axis. it moves in a uniform electric field directed along positive y axis. find ey such that the particle will cross the x axis at x = 1.5 cm if the particle is an electron.

If angle "a" is 25°, angle "b" is: a) equal to angle c b) less than angle c c) greater than angle c

Which situation will produce the greatest change of momentum

Aballoon is rising vertically upwards at a velocity of 10m/s. when it is at a height of 45m from the ground, a parachute bails out from it. after 3s he opens his parachute and decelerates ata a constant rate 5m/s. when. (a) what was the height of the parachutist above the ground when he opened his parachute? (b)how far is the parachutist from the balloon at t=3s? (c)with what velocity does the parachutist hit the ground? (d)after how long does the parachutist hit the ground after his exist from the balloon?