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Unpolarized light with an intensity of 875 W / m2 is incident on a polarizer with an unknown axis. The light then passes through a second polarizer with has an axis which makes an angle of 84.0° with the vertical. After the light passes through the second polarizer, its intensity has dropped to 114 W / m2. What is the angle between the axes of the polarizers?
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How much Power does it take to accelerate the 70,000 lb rail car from rest to 10mph in 20 feet with 1ft dia. wheels.
A clothes dryer is spinning at 75 rpm. A student opens its door and it comes to rest after rotating through four revolutions. What was the magnitude of the dryer's angular acceleration
What is linear acceleration
A compact disk spins with angular velocity 40.8rad/s. The player is turned off, and 2.10s later the CD has stopped. Find its average angular acceleration
A circular coil, with radius of 10 cm, and 25 turns, rotates in a constant magnetic field of strength 2.4 T, If the magnetic field that the coil is in points down the page, which direction does the coil rotate
The bottom of an aluminum pot has an area of 157 cm2 and a thickness of 3.25 mm. How many watts are needed to boil water at this rate
A curved plate of mass M is placed on the horizontal, frictionless plane as shown. How high the puck will shoot up from the plate
Find out the magnitude of the wind velocity. Find the direction of the wind velocity.If the wind velocity is 39 due south, in what direction should the pilot set her course to travel due west? Use the same airspeed of 213 .
A wheel is mounted on a stationary axle which we can assume frictionless. As a result, the wheel can turn freely but cannot translate. How much work is done by you on the pulling
a stell ball of mass m suspended by a thread of lenght l. the ball is then released when the thread is horizontal. at the bottom of this path, find the speed of the block just after collision
Consider a map oriented so that the x axis runs east-west (with east being the "positive" direction), find the direction of the total movement of the driver
A Hollywood daredevil plans to jump the canyon shown in the figure on a motorcycle, what is the correct angle for his launch ramp (deg) and What is his correct launch speed
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