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Question: A laser is aimed at the top of a pool of water. The beam makes an angle of 31 degrees to the normal to the water's surface. If the pool of water is 2.3 m deep with a flat bottom, where will the light beam hit the bottom of the pool relative to its entrance point on the air-water interface?
Please show the detailed calculation and Use nair= 1 and nwater= 1.33 for your calculations.
Two people are pushing inward on a door from the outside. One person is pushing the door shut from the inside. how much force is the hinge exerting on the door
A solid ball of mass 0.25 kg and radius 0.1 m rolls without slipping 4 m down an incline that makes an angle of 25 degrees with a horizontal. Find the angular acceleration of the ball
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A helicopter is ascending vertically with a speed of 5.02m/s. At a height of 140m above the Earth, a package is dropped from the window. How much time does it take for the package to reach ground.
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A plane lands with a speed of 51.0m/s. Each wheel of the plane has a radius of 1.25 meter and a moment of inertia of 110kg•m2. Find the coefficient of kinetic friction between runway and wheels
suppose that a particle accelerator is used to move two beams of particles in opposite directions. in a particular
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