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A player kicks a football into the air. It slows to a stop at its highest point in the air before falling to the ground. Which statement accurately describes the motion of the football?
A student decides to move the box of books into her dormitory room by pulling on a rope attached to the box. She pulls with a force of 168 N at an angle of 30.0° above the horizontal. The box has a mass of 21.0 kg, and the coefficient of kinetic f..
a 1600 kg car is traveling with a speed of 10 m/s. the driver slams on breaks, which give a force of 800 N. How far does the car go before reaching a halt
A cat dozes on a stationary merry-go-round, at a radius of5.5m from the center of the ride. Then the operator turns on the ride and brings it up to its proper turning rate of one complete rotation every6.0s.
A family ice show is held in an enclosed arena. The skaters perform to music playing at a level of 87.5 dB. What is the combined sound level
A hot-air balloon of diameter 12 m rises vertically at a constant speed of 11m/s. how high is the railing when the camera hits the ground
A centrifuge is a device in which a small container of material is rotated at high speed on a circular path. such a device is used in medical laboratories, for instance, to cause the more dense red blood cells to settle through the less dense bloo..
A uniform plank of 3.00 m and a mass of 50.0 kg is supported with three ropes, as indicated by the blue vectors in FigureP8.21. Find the tension in all rope when a 700 N person is.500 m from the left end.
A string of linearmass density μ1 is connected smoothly to a string of linea rmass density μ2. Find the refection and transmission amplitudes in terms of the mass densities, and independently in terms of the wave velocities.
A jogger accelerates from rest to 3.0 m/s in 2.0 s. A car accelerates from 38.0 to 41.0 m/s also in 2.0 s If the car travels further in those two seconds than the jogger does, how much further does it travel
Louise spikes a volleyball during a game. At the instant the volleyball leaves her hand, How long will it take for the ball to strike the floor
An asteroid, who's mass is 7.8 × 10-4 times the mass of Earth, revolves in the circular orbit around the Sun at a distance that is 2.5 times the Earth's distance from the Sun.
A 120 V potential is applied to a space heater that dissipates500 W during its operation. What is the resistance of the heater
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