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A solid sphere rolling without slipping on a rough horizontal surface with a linear speed 21m/s collides elastically with a fixed, smooth vertical wall. Find the speed of the solid sphere after it has started pure rolling in the backward direction. The radius of sphere being 1m.
An object on the ground is lunched at 10.0m/s at an angle of 75.0 above the horizontal. what is the horizontal displacment of the object
At a certain instant, a ball is thrown downward with a velocity of 8.0 m/s from a height of 40 m. find the time when the balls collide
A person pulls a 26kg suitcase using a rope attached to the suitcase at an angle of 28 degrees to the horizontal. The coefficient of static friction of the suitcase with the floor is 0.3 and the coefficient of kinetic friction is 0.20.
A 1000 kg aircraft going 25 m/s collides with a 1500 kg aircraft that is parked and they stick together after the collision. how far did they skid
An object of unknown mass is attached to an ideal spring with force constant 150N/m and is found to vibrate with a frequency of 6.00Hz. Find the mass of this object
What is the least (non-zero) thickness for the air layer between two flat, and parallel, glass surfaces if the glass is to appear dark while 640 nm light is incident normally? What if the glass is to appear bright.
A raindrop of mass 3.35 10 -5 kg falls vertically at constant speed under the influence of gravity and air resistance. Model the drop as a particle. As it falls 100 m,what is the work done on the raindrop (a) by the gravitational force and (b) by air..
Two insulating spheres have radii r1 and r2, masses m1 and m2, and uniformly distributed charges -q1 and q2. How fast is each moving when they collide
While taking a walk around your neighborhood, you see a flash of lightning hit the Earth in the distance. How far away did the lightning strike the ground
In a mass spectrometer, a singly charged ion having a particular velocity is selected by using a magnetic field of 0.10 T , What is the mass of the ion
A solid cylinder has an area of 10cm^2 and a height of 1.0m. The cylinder is composed of 2 different materials with mass densities of 2000 kg/m^3, what is the mass of the cylinder
A small button placed on a horizontal rotating platform with diameter 0.328 will revolve with the platform, How far from the axis can the button be placed, without slipping, if the platform rotates at 62.0
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