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One side of the roof of a building slopes up at 41.5°. 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 is 0.435. 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.
The tallest volcano in the solar system is the 22km tall Martian volcano, Olympus Mons. An astronaut drops a ball off the rim of the crater and that the free fall acceleration of the ball remains constant throughout the ball's 22km fall at a value..
What is the speed of light in a diamond that has an index of refraction of 2.4168? Calculate your answer to 3 significant figures
A snowboarder starts from rest rides 30.31m down a snow covered slope that makes an angle of 34.19 degrees with the horizontal, How far will she travel along the flat snow
Two point charges, q1 = 2.0 pC and q2 = -2.0 pC, are separated by 5.6 µm. What is the dipole moment of this pair of charges
A machine shop grinding wheel accelerates from rest with a constant angular acceleration of 2.8rad/s2 for 7.6s, Find the total number of revolutions turned
A uniform cubical crate of side length 1.7 m rests on the floor with one edge against a very small, fixed obstruction. What is the weight of the crate
What direction is white dot on the sensor pointing
A snowboarder starts from rest and rides 39.47 m down a snow-covered slope that makes an angle of 33.19° with the horizontal, How far will she travel along the flat snow
Three 13cm long rods form an equilateral triangle. Two of the rods are charged to + 19nC, the third to - 19 nC. What is the electric field strength at the center of the triangle
A force of 2880 N is needed to bring a car moving at 20.8 m/s to a halt in 18.3 s. What is the mass of the car
A person walks up a stalled 14 m long escalator in 81 s. When standing on the same escalator, now moving, the person is up in 48 s. How much time would it take that person to walk up the moving escalator?
A person wears a hearing aid that uniformly increases the intensity level of all audible frequencies of sound by 32.5 dB. What is the intensity delivered to the eardrum
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