Light with wavelength 600 nm is incident in air on an interface that separates r which is air and medium B which is unknown at an angle of 60°. If the refracte an angle of refraction of 30°, what is the speed of the refracted ray?
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- I need the answer as soon as possible2. For this series of 4 questions, a 1-lb ball is dropped from rest and falls a distance before striking the smooth plane at A. It bounces from the plane, and then strikes the plane again. You will be asked to solve for different things. Please pay attention: the numbers may change from problem to problem since they are randomized. 1) If the ball is dropped form rest at a height h = 5.2 ft, what is its speed right before it strikes the plane at A? Your answer must include 2 places after the decimal point. Take g = 32.2 ft/s². h A Your Answer: Answer B unitsThe 130-kg crate shown is on a smooth horizontal plane and has an initial velocity of 2 m/s. A towing force of 200 N is applied at an anle of 45 derees for 9 s. Determine the final velocity(m/s) after 9 s.
- A ball at rest at some height h; above the ground falls to Earth. Determine its final speed before crashing into earth. Ignore air resistance. +y OOO h₁If a green ball is thrown horizontally from a cliff, and simultaneously, a white ball is dropped from that same cliff, which will hit the ground first assuming the balls are the same size & mass and there is no air resistance?Ramp A block is given an initial velocity of 5.00 m/s up a frictionlessincline with an angle of 20.0° from horizontal. How far up the inclinedoes the block slide before turning around?
- A body of mass 1 kg is suspended from the ceiling of an elevator by a wire of negligible resistance Calculate the tension T when the elevator is moving upward with an acceleration of 2 m/sCalculate the acceleration of the block on the ramp if there is no friction. 50kg 30°If the water falls from a dam into a turbine wheel 19.6m below, then the velocity of water at the turbine is? (g=9.8m/s) a) 9.8m/s b) 19.6m/s c) 39.2m/s d) 98m/s