Water leaves a hose at a rate of 2.2-kg per 3.0-s with a speed of 20.9-m/s and is aimed at a toy car at the exact moment the car is hit the water slows down to 2.1-m/s (That is, we ignore any splashing back.) What is the force exerted by the water on the toy car?

The figure below displays a circular loop of conducting wire in a uniform magnetic field pointing into the page. The radius of the loop is 10.0 cm and the magnitude of the field is 0.160 T. You grab points A and B and pull them in opposite directions, stretching the loop until its area is nearly zero, taking a time of 0.170 s to do so. What is the magnitude of the average induced emf in the loop (in mV) during this time? * х * X x х A x * * x K mV X x * x. B * * *

A golf club strikes a golf ball. The club and the ball remain in contact for 0.6ms. The 35gram ball leaves the club with a speed of 60m/s. Calculate the average force of the club to the ball.

Two identical trucks Have mass 5500 KG when empty,  And the maximum permissible load for each is 8000 KG. the first truck, carrying 3800 KG, is at rest. the second truck plows into it at 65 km/h, and the pair moves away at 37 kmeter per hour. As an expert witness, you're asked to determine whether the second truck was overloaded. what do you report?

Calculate the final velocity right after a 116 kg rugby player who is initially running at 7.85 m/s collides head‑on with a padded goalpost and experiences a backward force of 17700 for 5.50×10^−2 s.    what is the final velocity in m/s?

A 3.45 kg black ball traveling 4 m/s has a head on collision with a white one at rest. Using the velocities shown, calculate the mass of the white ball, Ignore friction and air resistance. 0 m/s 4 m/s 1.4 m/s 5.7 m/s

In an attempt to imitate Miley, Betty White launches herself onto a wrecking ball. If she is moving at 6 m/s when she jumps on the ball, how high does the ball swing? Assume: mbetty = 60 kg (~140 lbs) 450 kg (~1000 Ibs) Mball And that the initial velocity is purely in the horizontal direction, and the support chain of the wrecking ball has negligible mass. a) Solve for the maximum swing height symbolically b) Solve for the maximum swing height numerically c) If the wrecking ball support chain has a length of 5 meters, what angular displacement does the ball have from vertical at the highest point?

You are playing volleyball. Your hand was in contact with the ball for 3milliseconds during the rally. The 1000gram ball leaves your hand with a speed 2.4m/s. Calculate the average force of you exerted on the volleyball.

t (a) What is the mass of a large ship that has a momentum of 3.00 x 10 kg m/s, when the ship is moving at a speed of 46.0 km/h? kg (b) Compare the ship's momentum to the momentum of a 1200 kg artillery shell fired at a speed of 1100 m/s. Pship Pshell

space a kg, including suit and oxygen tank. The tether line securing the astronaut to their spacecraft loses its attachment from the spacecraft while they are on a spacewalk. The astronaut is initially at rest with respect to the spacecraft, they then throw their 12.0 kg oxygen tank away from their spacecraft with a speed of 8.00 m/s in order to propel themselves back towards it. I) Calculate the maximum distance they can possibly be from the spacecraft and still return within 2.00 min (the amount of time the air in their helmet remains breathable). II) Which of Newton's law of motion explain best why this strategy works? (a) First (b) Second (c) Third