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A beam of red light (λ=700nm) is incident at 60 degrees onto a layer of material with index of refraction n=2.3. The beam continues and strikes another material (n=1.5) as shown. Find the angles θ1, θ2, and θ3. Also, find the wavelength of the light in each media.
A 78-kg person in a moving car stops during a car collision in a distance of 0.78m, Determine the speed of the person before the air bag opens up
He slides so that his speed is zero just as he reaches the base. Explain how much mechanical energy is lost due to friction acting on the runner? How far does he slide?
A cheerleader waves her pom-pom in SHM with an amplitude of 18.8 cm and a frequency of 0.870 hz. Find the maximum magnitude of the velocity
The verical displacement of a string is given by y(x,t)=(6.00 mm) cos[(3.25m^-1)x-(7.22s^-1)t]. What is the speed of the wave
A 250-g ball collides with a wall. The ball's velocity and the force exerted on the ball by the wall. What is v_{{rm{f}}x}, ball's rebound velocity.
An aluminum ice tray is filled with 200 gram of water. Find how much heat must be removed from this system to convert the water to ice cubes at -15oC
An astronaut tries to talk his way out of a traffic violation for running a red light (? = 670 nm) by telling the judge that the light appeared green (? = 540 nm) to him as he passed by in his expensive sports car. If this is true, how fast was the a..
A 4.13 kg silver ingot is taken from a furnace, where itstemperature is 751 degrees C, and placed on a very large block ofice at 0.00 degrees C. how much ice is melted
An electron (electron 1) moves to the left by speed 0.93c while a second electron (electron2) moves to the left with speed 0.51c. What is the speed of electron 2 as gauged by an observer sitting on electron 1?
Two cars emerge side by side from a tunnel. Car C is traveling with a speed of 60 km/h and has an acceleration of 40 km/h/min. Find which car is passing the other as they come out of the tunnel
An incident x-ray photon is scattered from a free electron that is initially at rest. What is the wavelength of the incident photon
Heat engines take input energy in the form of heat, use some of that energy to do work, and exhaust the remainder. Determine the magnitude of the heat the athlete gives off
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