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One side of the roof of a building slopes up at36.5°. A roofer kicks a round, flat rock that has been thrown onto the roof by a neighborhood child. The rock slides straight up the incline with an initial speed of 15.0 m/s. The coefficient of kinetic friction between the rock and the roof is0.475. The rock slides 10.0 m up the roof to its peak. It crosses the ridge and goes into free fall, following a parabolic trajectory above the far side of the roof, with negligible air resistance. Determine the maximum height the rock reaches above the point where it was kicked.
suppose one of the resistor in the bridge circuit was heated by baking it in an oven. how would this effect the current
A ball is thrown at an initial velocity of 105 mph upward at a roof. The ball is thrown a distance of 100 ft from the building. The building is 525 ft tall. Will the ball reach the roof
A ball that has a mass of 8 kg is attached to a string 1 m long and is whirled in a vertical circle at a constant speed of 18 m/s. Determine the tension in the string
A mass m= 200kg hangs from a horizontal ceiling by two cables, one of length 3.0m and the other 4.0 m ; What is the tension in each cable
A Young's interference experiment is per- formed with blue-green argon laser light. The separation between the slits is 0.434 mm, What is the wavelength of argon laser light
If the elastic limit of copper is 3.68 x108 N/m2, determine the minimum diameter a copper wire can have under a load of 42.2 kg if its elastic limit is not exceeded.
A strip of paper is pulled along at 20m/s at a right angle to the plane of a .49m long pendulum. The pendulum has a small ink jet device to the bob so that it marks the position of the pendulum on the paper. The bob is held 8.0cm to one side and rele..
Given a system composed of three bowling balls (6.52 kg each) one sliding east at a velocity of 20m/second the second sliding north with a velocity of 35 m/sec, find the total momentum of the system
An inductor has a 57.0-? reactance when connected to a 60.0-Hz source. What is the maximum current in the inductor
If a person exerts 44 N of force on the back of a seat while stopping in 0.4 seconds, what is the impulse on the seat back?
In a cathode ray tube, electrons are accelerated from rest with a constant electric force of magnitude 6.45 x10 −17 N through the first 2.18 cm of tube's length; then they move at essentially constant velocity another 45.0 cm before hitting the scr..
A high speed photograph of club hitting a golf ball is shown in the figure below. find the average force exerted on the ball by the club
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