Now add a fourth charged particle, particle 3, with positive charge q3, fixed in the yz-plane at (0,d2,d2). what is the net force f⃗ on particle 0 due solely to this charge?

Suppose a soccer ball is kicked from the ground at an angle 20.0º above the horizontal at 8.00 m/s. the y-velocity is determined to be 2.74 m/s. how long will the ball be in the air? assume the ball lands at the same height at which it was kicked.