Water from a nozzle at 35 m/s strikes the vertical back surface of a cart moving horizontally at a constant velocity. After the strike, the water stream splatters off in all directions in the plane of the back surface. The nozzle diameter is given as 5 cm. If the force needed to be applied by the brake to prevent the cart from accelerating, FRx, is -2000 N, what is the constant velocity of the cart

Atennis player used a tennis racket to hit a tennis ball with a mass of 0.25 kg with a force of 5.25 newtons. how does the force the tennis racket exerted on the tennis ball compare with the force the tennis ball exerted on the tennis racket? a. the force of the tennis racket on the tennis ball is equal in magnitude and opposite in direction to the force the tennis ball exerted on the tennis racket. b. the force of the tennis racket on the tennis ball is equal in magnitude and in the same direction as the force the tennis ball exerted on the tennis racket. c. the force of the tennis racket on the tennis ball is less in magnitude and in the same direction as the force the tennis ball exerted on the tennis racket. d. the force of the tennis racket on the tennis ball is greater in magnitude and opposite in direction as the force the tennis ball exerted on the tennis racket.

Ln finding the density of liquid why is the method of using a density bottle more accurate than the one of using a measuring cylinder

You need to fill a basketball with air to play with it. you know that your pump expels air at a velocity of 6 cm/s. you know that the volume flow rate of air being pumped into the basketball is 103 cm^3/s. what is the diameter of your needle?