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A light ray passes during a spherical raindrop, undergoing refraction as it enters the drop, than total internal reflection, and refraction as it leaves the drop. Show that the angle of the incident ray and exiting ray is 4 sin-1 (sin θ/n)-2θ
An object of mass 10 kg is initially at rest. What is the change in the kinetic energy of this object
Suppose the Eskimo is pushing the same 50.0-kg sled across level terrain with a force of 50 N. If he does 4 x 10^2J of work on the sled while exerting the force horizontally, through what distance must he have pushed it.
there are two identical positively charged conducting spheres fixed in space. the spheres are 39.4 cm apart center to
When a-particles with energy of 5MeV are scattered on a thin gold foil, it is found that 10,000 a-particles are scattered at an angle greater than 50o, How many will be scattered between 70o and 80o
the department of labor would like to estimate the average weekly wages for us adults with a margin of error equal to
A box of mass 38.5 kg is sitting on a horizontal table top with a coefficient of kinetic friction between the box and the surface of 0.49. Find the magnitude of the acceleration of the box on the table
If Jessica can accelerate at a speed of 5-m/s^2, how long will it take for her to reach a speed of 30.0 m/s.
In Young's double slit interferance experiment, it is foundthat the second bright fringe is at the angle of 20 degrees. find the wavelength of the light source
Young David who slew Goliath experimented with slings before tackling the giant. He found that he could revolve a sling of length 0.650 m at the rate of 9.00 rev/s. What is the speed of the stone for each rate of rotation
while crossing campus you get your directions mixed up. you start traveling 272 m east you then travel 103 m traveling
In a lecture demonstration, laser light is used to illuminatetwo slits separated by 0.5 mm, and the interference pattern isobserved on a screen 4.0 m away. The distance on the screenfrom the centerline to the, m = 16 bright fringe is 6.0 cm.
hydrogen peroxide decomposes in water by a first order process. a 0.156 m solution of h2o2 decomposes with an initial
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