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Initially unpolarized light is icident on a series of three polarizers, with the first axis verticle, the second axis rotated an angle (theta) with respect to the first and third rotated by an angle of (theta) with respect to the second.
a) The initial intensity is 160 W/m^2 and final transmitted intensity is 5 W/m^2. What is the angle (theta) between the neighboring polarizers?
Find what is the kinetic energy in MeV of a meson that lives 1.70 x 10-16 second as measured in the laboratory, and 0.840 x 10-16 second when at rest relative to an observer, given that its rest energy is 135 MeV
A styrofoam cooler (K = .030 W/mo C) has an average surface area of 0.576 m2 and an average thickness of 2.6 cm. How much heat is required to melt the ice in the cooler
a student ate a thanksgiving dinner that totaled 2400 cal. He wants to use up all that energy by lifting a 27 kg mass a distance of 1.0 m. How many times must he lift the mass
A playground merry-go-round (uniform disk with mass M=150kg and radius R=2m) rotates on a frictionless axle through its center. What is the kinetic energy of the child-merry-go-round-system
A fisherman is fishing from a bridge and is using a "33N testline." In other words, the line will sustain a maximum force of33.0 N without breaking.
from a fixed point a surveyor locates a pole at 215.6 ft due east and a bulding corner at 358.2 ft at 37.72 degrees
When a high-power laser is used in the Earth's atmosphere, At this maximum intensity, what power can be delivered in a cylindrical beam of diameter 6.56 mm
A constant force is applied to an object, causing the object to accelerate at 10 m/s2. What will the acceleration be if the force is halved? What will the acceleration be if the object's mass is halved?
A positive charge of 4.40 uC is fixed in place. From a distance of 4.20 cm a from the fixed positive charge, What is the speed of the +3.30 uC when it is 7.10 cm away from the fixed positive charge
An electron is initially moving at a speed of 1740 m/s directly toward a long wire that has 2.00 A of current flowing through it. What are the direction and amount of the force
A spaceship enters the solar system moving toward the Sun at a constant speed relative to the Sun. how long did it take for the spaceship to travel that distance
A piece of iron isheated with a torch to a temperature of 6000 K. How much moreenergy does it emit as blackbody radiation at 6000K than it does atroom temperature, 300 K?
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