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A laser beam is traveling through an unknown substance. When it encounters a boundary with air, the angle of reflection is 27.6° and the angle of refraction is 46.0°.
(a) What is the index of refraction of the substance?
(b) What is the speed of light in the substance?
(c) At what minimum angle of incidence would the light be totally internally reflected?
A platinum resistance thermometer has resistances of 199.64 ? when placed in a 0°C ice bath and 266.19 ? when immersed in a crucible containing melting potassium. What is the melting point of potassium
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A transverse periodic wave is represented by the equation z(y,t) = 3.2 cm sin( 5m^-1 y + 1500 rad/s t). What is the frequency of the vibration of the wave? Give answer in Hz
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water at a pressure of 4.5 atm at street level flows into an office building at a speed of 0.7 ms through a pipe 5 cm
A man is trying to get his car out of mud on the shoulder of a road. He ties one end of a rope tightly around the front bumper and the other end tightly around a utility pole a distance d away. What is the magnitude of the force on the car from the..
A solenoid inductor has an emf of 0.90V when the current through it changes at the rate 10.0 A/s. How many turns does the inductor have
question a loundspeaker diaphragm is producing a sound for 2.1 s by moving back and forth in a simple harmonic motion.
A fire hose must be able to shoot a stream of water a specified height, straight up. Calculate the gauge pressure (difference between actual pressure
An explosion breaks an object into two pieces, one of which has 1.48 times the mass of the other. How much kinetic energy did the heavier piece acquire
If one arm of a Michelson interferometer contains a tube 2.5 cm long that is ?rst evacuated and then slowly FIlled with air (n=1.0003)
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