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The angle of incidence of a light beam in air onto a reflecting surface is continuously variable. The reflected ray is found to be completely polarized when the angle of incidence is 51.5°.
(a) What is the index of refraction of the reflecting material?
(b) If some of the incident light (at an angle of 51.5°) passes into the material below the surface, what is the angle of refraction?
The difference in electric potential between a thunder cloud and the ground is 1.58 108 V, Determine the change in electric potential energy of one of the electrons that move to the cloud
While john is travelling along an interstate highway, he notices a 166 mile marker as he passes through town. Later john passes another mile marker, 105.
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An astronaut leaves Earth in a spaceship at a speed of 0.280C relative to Earth. If the destination is a star system 12.5 light-years away as measured by an observer on Earth, what is the distance to the star system as measured by the astronaut..
Current & magnetic induction in the electrical circuits.
An ideal spring is used to fire a 15.0-g block horizontally. The spring has a spring constant of 40 N/m, The kinetic energy of the pellet as it leaves the spring is
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If material increases its length by 4.2% when its temperature is raised 40 degrees C, then what is its coefficient of linear expansion
You have an open tube that is 1.3m long. what is the fundamental frequency of the wavelength of the tube
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