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A beam of light traveling in air strikes the surface of mineral oil at an angle of 17.8° with the normal to the surface. If the light travels at 2.17 X 108 m/s in the oil, what are the following?
(a) index of refraction of mineral oil.
(b) angle of refraction.
A force acts on a block weighing 45N. The block is initially at rest on a plane inclined at angle θ = 18.0° to the horizontal. The positive direction of x axis is up the plane.
At some instant and location the electric field associated with an electromagnetic wave in vacuum has the strength 86.9 V/m. Find the magnetic field strength
A steel ball with a mass of 32.0g is dropped from a height of 2.10m onto a horizontal steel slab. The ball rebounds to a height of 1.50m. find the average force on the ball during the impact
You bike at 10.3 m/s directly away from your neighbor\'s trumpet sound and toward the sound of another neighbor\'s trombone, What frequency is the trombonist producing
Two very thick equally-magnetized square plates of side 0.23m and of mass 20 g, are hung by threads 20.0 cm long from a common point. Calculate the magnetic field energy stored between the two plates
For alpha particles of energy 7.68 MeV scattered from a platinum foil two microns thick, find the collision diameter
What is the apparent weight of a 75 kg astronaut.
you are handed an apple that has a mass of 102g. to get a better of idea of what different pressure feel like, what is the pressure of the apple
An electron moves in a circular path perpendicular to a uniform magnetic field with a magnitude of 1.4 mT. determine the time it takes to complete one revolution
A pilot is flying an airplane that is used for aeriel surverying to make a map of ground detail of New Jersey. If the scale of the map is to be 1:50,000 and the camera has focal length of 6in
The diffusion constant for the alcohol ethanol in water is 1.24 10-9 m2/s. A cylinder has a cross-sectional area of 3.95 cm2 and a length of 2.02 cm. what mass of ethanol diffuses through the cylinder
At a distance of several kilometers from a radio transmitter, the electric field of the emitted radio wave has a magnitude of 0.12 V/m at one instant of time
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