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Unpolarized light whose intensity is 1.40 W/m2 is incident on the polarizer as shown in the figure. If the analyzer is set at an angle of theta = 80o with respect to the polarizer, what is the intensity of the light that reaches the photocell?
A vessel whose walls are thermally insulated contains 2.30kg of water and 0.400kg of ice, all at a temperature of 0.0 ?C. How many grams of steam must condense inside the vessel
A thermos contains 153 cm3 of coffee at 93.9 °C. Tocool the coffee, you drop two 14.0-g ice cubes into the thermos. What is the final temperature of the coffee in degrees Celsius
A 600 gram particle (initially at rest at the origin) is subjected to a force of F=15i+20j (N), calculate the average power produced by this force
0.45 kg of a metal at 90degreesC is added to 0.40 kg of whater at 20.0degreesC. If the final temp of the mixture is 26.0degreesC, what is the specific heat of the metal
A horizontal platform in the shape of a circular disk rotates on a frictionless bearing about a vertical axel through the center of the disk. the platform has a mass of 150 kg a radius of 2m and a rotational inertia of 30 kgm about the axis of ..
Two springs of constants 2.0 x 103 N/m and 3.0 x 103 N/m are connected in tandem, and mass of 5.5kg hangs vertically from this spring. By what amount does the mass stretch the combined spring
A Carnot engine has a power output of 130 kW. The engine operates between two reservoirs at 20°C and 500°C, How much energy does it take in per hour
Diffraction also occurs with sound waves. Consider 1400-Hz sound waves diffracted by a door that is 93 cm wide. What is the angle between the two first-order diffraction minima
q. a speed ramp at an airport is basically a large conveyor belt on which you can stand and be moved along. the belt of
A three level laser has energy levels E 1=1.50 eV, E 2=3.50 eV, and E 3=5.50 eV. Level E 2 is the metastable state. What is the lasing wavelength
A single conservative force acts on a 5.00 kg particle within a system due to its interaction with the rest of the system. Calculate the work done by this force on the particle
Four point charges, q, are fixed to the four corners of a square that is 10.3 cm on a side. What is the magnitude of each fixed charge in coulombs
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