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Four rays of light are incident on a surface of water. Their angles of incidence are 20, 30, 45, y 60 degrees. Calculate the angle of refraction for each ray, and make a drawing showing the situation.
my friend bob takes a leisurely stroll at a constant speed of 1.2 m/s for 8.5 mins to the south then jogs at a constant speed of 2.7m/s for 6.3 mins to the south
what is the thermal kinetic energy in 1kg of oxygen gas at 20 degrees celsius? What fraction of this energy is translational
A meteor streaking through the night sky is located with radar, its has moved to point B, Find the x component of its average velocity between A and B
A photon has the same momentum as an electron moving with a speed of 1.83×105 m/s. What is the wavelength of the photon
Express the highest load in terms of theta_min and other quantities given in the problem introduction.
A irregular piece of metal has a dry mass of 5.7 kg. Once it is submerged it has an apparent mass of 2.4 kg. What is the density of the piece of metal
A scuba diver takes a tank of air on a deep dive. The tank's volume is 10 L and it is completely filled with air at an absolute pressure of 222atm at the start of the dive
You have a wire of length L = 1.9 m for making a square coil of a dc motor. The current in the coil is I = 1.6 A, Find the maximum torque exerted on the coil
After impact, the block slides 7.5 m before coming to rest. If the coefficient of kinetic friction between block and surface is 0.650, illustrate what was the speed of the bullet immediately before impact?
On an air track, a 400.5g glider moving to the right at 2.00m/s collides elastically with a 500.5g glider moving in the opposite direction at 3.00m/s. find the velocity of the glider after the collision
If the amplitude of a particle in simple harmonic motion is doubled, how are the total energy and maximum speed affected
You place a 3.63-mm-high diamond on the axis of and 12.7 cm from a lens with focal length -5.15 cm. How high is the image
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