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A glass is half-full of water, with a layer of oil (n = 1.50) floating on top. A ray of light traveling downward through the oil is incident on the water at an angle of 75.0°. Take the refraction index of water to be 1.333.
(a) Determine the critical angle for the oil-water interface.
(b) Will the ray penetrate into the water?
The box is open at the top and has edge length L = 66 cm. Find out (a) the x coordinate, (b) the y coordinate, and (c) the z coordinate of the center of mass of the box.
A sample of ideal gas occupies a volume of one litre at atmospheric pressure and temperature, 20 C. What pressure is required to squeeze the gas into one-half litre at 40 C?
A generator has a square coil consisting of 187 turns. The coil rotates at 83.4 rad/s in a 0.202-T magnetic field. What is the length of one side of the coil
a point source of light is 3.5m below the surface of a large pool of water. what is the diameter of the largest circle on the pool's surface through which light can escape
Tritium with a half-life of 12.3 years is used to verify the age of expensive brandies. how many years ago was it produced
Firemen are shooting a stream of water at a burning building. A high-pressure hose shoots out the water with a speed of 23.0m/s as it leaves the hose nozzle. Find the angle of elevation of the hose
A wooden raft has a mass of 65 kg. When empty it floats in water (density 1000 kg/m3) with 41percent of its volume submerged. What mass of sand can be put on the raft without it sinking.
A transformer with a turns ratio (secondary/primary) of 1:11 is used to step down the voltage, determine the voltage supplied to the recharger
Two capacitors, C1 = 4.00 µF and C2 = 13.0 µF, are connected in parallel, and the resulting combination is connected to a 9.00-V battery. Find the equivalent capacitance of the combination
the speed of light in a certain material is measured to be 2.2*10^8 m/s. what is the index of refraction of this material
A capillary-tube viscometer is being selected to measure viscosity of a liquid food, If the tube length is 10 cm and a maximum pressure of 25 Pa can be measured, determine the tube diameter to be used
Jack and John are standing 6m apart from each other playing soccer. Jack kicks the ball to John and John kicks it back immediately. find the speed of the ball when it's kicked back to Jack
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