A ball is kicked from the ground with an initial velocity of 15 m/s at an angle of 35° above the horizontal. The ball hit a wall 20m away. How high above the ground did the ball hit the wall?

Point charges q1 = 51 µc and q2 = −27 µc are placed 1.0 m apart, with q2 on the right. what is the force (in n) on a third charge q3 = 19 µc placed midway between q1 and q2? (assume the positive direction is to the right. indicate the direction with the sign of your answer.)