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A tennis player receives a shot with the ball (0.060 0 kg) traveling horizontally at 50.5 m/s and returns the shot with the ball traveling horizontally at 36.5 m/s in the opposite direction. (Assume the initial direction of the ball is in the ?x direction.)
(a) What is the impulse delivered to the ball by the tennis racquet?
(b) What work does the racquet do on the ball?
What is the approximate mass of the cat.
A 1000kg truck is driving up a 10 degree slope. A 10g ornament hangs by a massless string from the rear-view mirror in truck.
As the crate is sliding down the ramp, you find out the washer is at rest with respect to the crate when the string makes an angle of 73 with the top of the crate.
A 15 g bullet traveling at 485 m/s strikes a 0.9 kg block of wood that is balanced on a table edge 0.7 m above ground. If the bullet buries itself in the block, find out distance D at which the block hits the floor.
A stone is thrown at a bell with the speed of 20m/s. The stone strikes the bell and the sound is heard 2.60 s after the stone was released. Speed of sound is 342m/s, how far is the boy from bell.
What is this force in Newtons.
Find out the magnitude of the force exerted by the right pillar while a 90.0 diver stands at the far end of the board.
A baseball pitcher throws a fastball at a speed of 45.00m/s. The acceleration occurs as the pitcher holds the ball in his hand and moves it throughout an almost straight-line distance of 4.0 m. compute the acceleration; assume that it is constant ..
When a battery is connected to a 145?? resistor, the current is 3.27A. Find the internal resistance of the battery and the emf supplied by the battery
A car makes a round trip for 100m in 10 seconds. What is the average velocity?
Physics Question: A jogger runs directly east for 5 km, then turns and goes northwest for 9 km. He then travels directly south for 2 km
when 105 mL of water at 22 C is mixed with 68mL of water at 95 C, what is the final temperature? suppose no heat is lost to the surroundings and density of water is 1 g/mL.
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