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The angle of incidence at a solid/liquid boundary is 65.3°, andthe index of refraction of the solid is n = 1.71.(a) What must be the index of refraction of the liquid such that the direction of the light entering the liquid isnot changed? (b) What is the largest index of refraction that the liquid can have, such that none of the light is transmitted into the liquid and all of it is reflected back into the solid?
A solid sphere of uniform density starts from rest and rolls without slipping a distance of d = 4 m down a q = 28° incline. The sphere has a mass M = 5.2 kg and a radius R = 0.28 m. What is the magnitude of the frictional force on the sphere?
A 2000-kg elevator is rising and its speed is increasing at 4 m/s^2. What is the tension in the elevator cable
An intergalactic rock star bangs his drum every 1.10 s. A person on earth measures that the time between beats is 2.10 s
a television channel is assigned the frequency range from 54 mhz to 60 mhz. a series rlc tuning circuit in a tv
An insulated vertical piston cylinder device initialy contains 10kg of water, 6 kg of which is in the vapor phase. The mass of the piston is such that it maintains a constant pressure of 200 kPa inside the cylinder.
a 6.0 ohm resistor and a 3.0 ohm resistor are connected in parallel to a 1.5 v battery of negligible internal
An object with a density of 901.0 kg/m3 and a mass of 895.0 kg is thrown into the ocean. Find the volume that sticks out of the water
A softball of mass 0.220 kg that is moving with a speed of6.0 m/s (in the positive direction)collides head-on and elastically with another ball initially atrest. Calculate the velocity of the target ball after the collision
A 71.9-kg person stands on a scale in an elevator. What is the apparent weight when the elevator is (a)accelerating upward with an acceleration of 1.92 m/s2,(b) moving upward at a constant speed, and(c) accelerating downward with an acceleration of..
A potter's wheel -- a thick stone disk of radius 0.500 m and mass 120 kg -- is freely rotating at 50.0 rev/min. The potter can stop the wheel in 6.00 s by pressing a wet rag against the rim and exerting a radially inward force of 63.0 N. Find the eff..
Big yellow fish swimming at 2.0m/s swallows little green fish at rest. Big yellow fish is 3 times as massive as little green fish. What fraction of big yellow fish's initial kinetic energy was lost in this collision
Estimate the fractional error (%) on the left side and on the right side of the equation based on the precision of the available equipment in class: the pulling mass is measured by slotted weights with precision of 10 gram
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