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Suppose the thin-film coating (n = 1.16) on an eyeglass lens (n = 1.33) is designed to eliminate reflection of 517-nm light.
(a) Determine the number of phase inversions that occur. ____
(b) Determine the wavelength of light in the thin-film coating.____ m
(c) Determine the minimum required coating thickness. Take the index of refraction for air to be 1.00.____ m
In an attempt to escape his island, Gilligan builds a raft and sets to sea. What is his final position relative to the island
Two large metal plates of area 1.0m2 face each other. They are 5.0cm apart and carry equal and opposite charge on their inner surfaces. what is the charge on the plates
At 2.3 kilometer from the transmitter, the peak electric field of a radio wave is 330 mV/m. Determine what is the transmitter power output, assuming it broadcasts uniformly in all directions
a myopic student is shaving without his glasses. if his eyes have afar point of 1.5m what is the greatest distance he
Angel Falls in southeastern Venezuela is the highest uninterrupted waterfall in the world, dropping 979 m (3212 ft). Assume that it takes 14 s for the water to fall from the lip of the falls to the river below. If the water lands 55 m from the bas..
Two blocks made of different materials, connected by a thin cord, slide down a plane ramp inclined at an angle 32 degrees to the horizontal. Determine the tension in the cord
The wave function for a traveling wave on a taut string is (in SIunits) the following equation. y(x, t) = (0.382 m)sin(14πt - 3πx + π/4), What are the speed and direction of travel of the wave
Two children are playing on a balanced seesaw. One child with a mass of 40 kg sits 1.6 m from the center. Where on the other side must the second child sit
A projectile is fired horizontally from a gun that is 79.0 m above flat ground, emerging from the gun with a speed of 250 m/s. How long does the projectile remain in the air?
One side of the roof of a building slopes up at 34.0°. A student throws a Frisbee onto the roof. It strikes with a speed of 15.0 m/s and does not bounce, but slides straight up incline. The coefficient of kinetic friction between plastic and roof is ..
Equipment to be used in airplanes or spacecraft is often subjectedto a shake test to be sure it can withstand the vibrations that maybe encountered during flight. Find the radio's maximum speed
A 20-N horizontal force pushes an object along a rough floor so that the object moves with a constant velocity of 7.0 m/s
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