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A very large number (N+1) polaroids are arranged in a sandwich. The transmission axis of each polaroid is at a constant
angle ? with respect to its predecessor. Thus the last Polaroid is at an angle Theta=N? from the first. A plane polarized light of
irradiance I0 is incident on the first polaroid which has a transmission axis parallel to the plane of polarization of the light.
Determine the output irradiance from the sandwich.
A steel beam that is 5 m long weighs 320N. It rests on two supports, 3.00 m apart, with same amounts of the beam extending from each end. Suki, who weighs 525N, stands on the beam in the center and then walks toward one end. How close to the end c..
the second person is initially at rest. Illustrate what are the velocities of the two people after the snowball is exchanged? Disregard the friction between the skates and the ice.
A long, straight wire runs along the y-axis. The wire carries a current in the positive y-direction that is changing as a function of time according to i = 8 A + (0.2 A/s)t. A loop of wire is placed in the xy-plane near the y-axis. The loop has di..
which the tortoise wins in a photo finish? suppose that, when moving, both animals move steadily at their respective maximum speeds.
A 100 g granite cube slides down a 40* frictionless ramp. At the bottom, just as it exits onto a horizontal table, it collides with a 200g steel cube at rest. How high above the table must the granite cube be released to give the steel cube a spee..
Express the highest load in terms of theta_min and other quantities given in the problem introduction.
A pulley 18 in diameter is free to rotate about the horizontal axle. A 220 mass and a 420 mass are tied to either end of a massless string, and string is hung over the pulley.
Three equal point charges, each with charge 1.15 , are placed at the vertices of an equilateral triangle whose sides are of length 0.600 . What is an electric potential energy of the system? (Take as zero the potential energy of the three charges ..
An opera singer in a convertible sings a note at 600 whereas cruising down the highway at 81. What is the frequency heard by a person standing beside the road in front of car? What is the frequency heard by the person standing beside the road behi..
A 1.00 kg glider on a horizontal air track is pulled by a string at an angle θ. The taut string runs over a pulley and is attached to a hanging object of mass 0.500 kg .
A block is given an initial velocity of 5 m/s up a frictionless 20 ° incline. How far up the incline does the block slide before coming (momentarily) to rest.
An Olympic basketball player shoots towards a basket that is 5.36m horizontally from her and 3.05m above the floor. The ball leaves her hand 1.83m above the floor at an angle of 45.0o above the horizontal. What initial speed must she give the ball so..
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