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The drawing shows four sheets of polarizing material, each with its transmission axis oriented differently. light that is polarized in the vertical direction is incident from the left and has an average intensity of 19 W/m^2. Determine the average intensity of the light that emerges on the right in the drawing (a) when sheet A alone is removed, (b) when sheet B alone is removed, (c) when sheet C alone is removed, and (d) when sheet D alone is removed.
A pendulum has a length of 0.67 meter. Determine how long would the pendulum have to be to double the period
An engine with an output of 267.0 W has an efficiency of 39.0 %. It works at 9.00 cycles/s. How much heat is rejected each cycle
A student is running at her top speed of 5.4m/s to catch a bus, which is stopped at the bus stop. What is the minimum speed the student must have to just catch up with the bus
Calculate the resistance of a piece of 20-gauge aluminum wire 2.70 m long. The cross-sectional area of 20-gauge wire is 0.5176 mm2
A model of a helicopter rotor has four blades, each 3.60 m in length from the central shaft to the bladetip. What is the radial acceleration of the blade tipexpressed as a multiple of the acceleration due to gravity,g?
question1a red train travelling at 63 kmh and a green train travelling at 140 kmh are headed toward one another along a
To determine the range and time of flight of a projectile and To analyze the effect of air-resistance
A metal sphere with radius r_a is supported on an insulating stand at the center of a hollow, metal spherical shell with radius r_b. There is charge + q on the inner sphere and charge - q on the outer spherical shell. Take potential V to be zero w..
What is the least coefficient of friction between the beam and the wall for the beam to remain in static equilibrium.
A spherical object has an outside diameter of 52.0 cm. Its outer shell is composed of aluminum and is 2.40 cm thick. What is the object's average density
A package delivery service (we cannot say any names but their initials are F and E), has asked your help in designing a system to bring packages that have been sliding along delivery chutes before they get loaded onto the trucks. Find the speed of..
A 5.70 kg object on a horizontal frictionless surface is attached to a spring with spring constant 940 N/m. What is the frequency of the motion
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