A tennis player receives a shot with a 0.05 kg ball travelling horizontally at 40 m/s and returns the shot with the ball traveling horizontally in the opposite direction with a speed of also 40 m/s. Find (a) the magnitude of the impulse delivered to the ball, and(b) the average force applied/exerted on the ball if it remains in contact with racket for 0.002 sec.

If an inclined plane is 5 m long and 2 m high, what is its mechanical advantage? a. 2.5 b. 3 c. 7 d. 10

Astudent is working in the lab to determine how time affect impulse the student keeps the force the same in each row but changes impact the time some data is shown witch trial has the greatest a student is working in the lab to determine how time affect impulse the student keeps the fours the same in each row but change is the impact time some data shown witch trial has the greatest impulse

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.)