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A disc is at rest at the top of a 3m long ramp that is angled at 10 degrees. it has a mass of 8 kg and a radius of 6 cm. when it reaches the bottom of the ramp it has an immediate impact with an immovable wall which causes a particle of mass .6kg from the very top of the shape to fly off of the object and land on the other side of the wall. questions: what is the tangential velocity of the particle as it leaves the top of the object? how much time will it take for the particle to leave the object and hit the ground? how far horizontally will the particle go once it leaves the object? how much energy did the collision absorb when the object hit the wall? how would the motion of the particle have been different if the object had a smaller radius, but the same amount of mass? justify your answer.
A 44.20 cm diameter disk rotates with a constant angular acceleration of 2.84 rad/s2. It starts from rest at t = 0, and a line drawn from the center of the disk to a point P on the rim of the disk makes an angle of 57.3° with the positive x-axis at t..
A horizontal force of 280 Nis exerted on a 2.0 kg discus as it is rotated uniformly in ahorizontal circle (at arm's length) of radius 1.00 m. Calculate the speed of the discus
A person has far points 76.1 cm from the right eye and 112 cm from the left eye. Write a instruction for the powers of the corrective lenses. Find the right and left lens.
if a room needs completely new air every 20.0 minutes the volume of the room is 2560 cubic feet what is the volume of
A myopic (nearsighted) dancer wears eyeglasses that allow him to have clear distant vision. Without eyeglasses, what is the far point of the dancer
you apply a potential difference of 4.5 volts between the ends of a wire that is 2.5 m in length and .654mm in radius. What length of nichrome wire will you use
A tractor tows a plane from its airport gate, doing 8.9MJ of work. How far does the tractor move the plane
Unpolarized light passes through a vertical polarizing filter. The light then passes through a horizontal filter, which blocks all of the light; What is the transmitted intensity now
In a lightening bolt, current travels upward, from ground to cloud.Suppose that at the moment that a 35,000, what is the magnitude and direction of the magnetic force on the airplane
a pottery wheel is rotating initially with an angular velocity of 4.0rad/s clockwise. find the direction of the angular acceleration of the wheel
A rubber ball is dropped and bounces vertically from a horizontal concrete floor. If the ball has a speed of 3.2 m/s now before striking the floor and a speed of 2.1 m/s just after bouncing, what is the average force of the floor on the ball? Suppose..
Find out the minimum sound intensity
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