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Light rays in a material with index of refraction 1.29 can undergo total internal reflection when they strike the interface with another material at a critical angle of incidence. Find this material\'s index of refraction when the required critical angle is 77.5°.
A constant force, F = (4.63, ?3.79, 1.96) N,acts on an object of mass 18.9 kg, What is the total work done by this force
An elevator weighing 2500 N ascends at a constant speed of 8.0 m/s. How much power must the motor supply to do this?
Find out the magnitude of the centripetal force.
You are lowering two boxes, one on top of the other, down the ramp by pulling on a rope parallel to the surface of the ramp. find the magnitude of the friction force on the upper box
A pressure as low as P = 8 ? 10-11 Pa has been obtained. Suppose a chamber contains helium at this pressure and at room temperature, Estimate the mean free path
A length L of wire carries a current i. Find the expression for the maximum torque
A person is standing at the edge of the water and looking out at the ocean. The height of the person's eyes above the water is h = 1.4 m, How far is it to the horizon
A particle state is represented by the following wave function
A tuning fork with a frequency if 536 Hz is placed near the top of a tube opened at one end and closed at the other end. The water level is lowered so that the length of the air column slowly increases from an initial value of 20.25cm. Determine the ..
Calculate the wavelength of light in vacuum that has a frequency of 1.8 107 Hz. 16.6666 Correct: Your answer is correct. m What is its wavelength in benzene? (The index of refraction of benzene is 1.501.) Correct: Your answer is correct. m
A certain compact disc player draws a current of 340 mA at 27.0 V. How much power is required to operate the player
It takes 23 hours 56 minutes and 4 seconds for the earth to make one revolution (mean sidereal day). What is the angular speed of the earth
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