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A thin soap film (n = 1.35) is suspended in air. The spectrum of light reflected from the film is missing two visible wavelengths of 490.8 nm and 589.0 nm, with no missing wavelengths between the two.
(a) What is the thickness of the soap film?
(b) what are the missing, visible wavelengths that are reflected?
(c) What wavelengths of light are strongest in the transmitted light?
A bicycle wheel of radius r = 0.5 m starts from rest and rolls 150 m without slipping in 30 s. Calculate the number of radians through which it turns
Assume the magnitude of the electric field on each face of the cube of edge L = 1.03 m in the figure below is uniform and the directions of the fields on each face are as indicated. (Take E1 = 35.7 N/C and E2 = 27.5 N/C.)
A sphere completely submerged in water is tethered to the bottom by a string. The tension in the string is 1/5 (aka one-fith) the weight of the sphere. What is the density of the sphere
A car of mass = 800 travelling at 45.0 enters a banked turn covered with ice. The road is banked at an angle, and there is no friction between the road and the car's tires. What is the radius of the turn if = 20.0 (Assume the car continues in unif..
A grandfather's clock is calibrated at a temperature of 20 C. The pendulum is a thin brass rod with a heavy mass attached to the end. On a hot day, when the temperature is 30 C, does the clock run fast or slow? How much time does it gain or lose i..
At the bottom of the sea a small hole developed at the body of a submarine. at what speed the water is entering into submarine
An alpha particle (q=2e m=4m) exists in a region where the electric field is E=14,000 N/C, find the acceleration of the alpha particle if it is released
A floodlight with a mass of 46.00 kg is used to clarify the parking lot in front of a library. The floodlight is supported at the end of horizontal beam that is hinged to a vertical pole. A cable that makes an angle of 29 degrees with the beam is att..
lightbulbs in AC circuits "flicker" in intensity, though the flicking is too fast for your eyes to sense it. how many times a second does the bulb reach peak brightness
A 110 granite cube slides down a 45 degree frictionless ramp. At the bottom, just as it exits onto a horizontal table, it collides with a 235 steel cube at rest. How high above the table should the granite cube be released to give the steel cube a..
A heater coil connected to a 220V ac line has a resistance of 42.1Ohm. What is the average power used, What is the maximum value of the instantaneous power
An inductor is to be made by wrapping wires around a paper tube of radius 0.702 cm and length 8.44 cm. How many turns will give the inductor an inductance of 4.000e-3 H?
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