A ball is thrown horizontally at 30 meters per second from the top of a 20 - m * e * t -tall platform, as shown above . Determine the horizontal distance traveled by the ball.

two charges are fixed in place on the x-axis as shown. the charge at x = 0 is negative and has magnitude q = 2 μcoulombs (1 μcoulomb = 10-6 coulombs). the charge at x = d, (d = +12 cm), is positive and has magnitude q = 4 μcoulombs. find a point x = xo along the x-axis at which the electric field is zero.

terd muffin is the correct answer