Apoint charge q1 = -4.00 nc is at the point x = 0.60 m, y = 0.80 m , and a second point charge q2 = +6.00 nc is at the point x = 0.60 m , y = 0. calculate the magnitude of the net electric field at the origin due to these two point charges? calculate the direction of the net electric field at the origin due to these two point charges?

An astronaut on the moon throws a baseball upward. the astronaut is 6 ft, 6 in. tall, and the initial velocity of the ball is 3030 ft per sec. the height s of the ball in feet is given by the equation s equals negative 2.7 t squared plus 30 t plus 6.5s=−2.7t2+30t+6.5, where t is the number of seconds after the ball was thrown. complete parts a and b.