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A 50 W light bulb shines through two polarizers. After having passed through the first polarizer, the electric field incident on the second polarizer is 5.0 V/m. The second polarizer sits at a 50° angle from the first polarizer. What is the electric field immediately after having passed through the second polarizer?
two paths lead to the top of a big hill. one is steep and direct while the other is twice as long but less steep. how
A 7.00g coin is placed 17.0cm from the center of a turntable. What is the maximum angular velocity with which the turntable can spin without the coin sliding
For no apparent reason, a poodle is running at a constant speed of 6.00 m/s in a circle with radius 2.9 m. Let v1 be the velocity vector at time t1 , and let V2 be the velocity vector at time t2 . Consider (change in v)=v2-v1 and (change in t)=t2-..
A girl walks 26 meters at an angle of 39° west of south. How far west of her starting point is she
An organ pipe is 2.0 m long. Assume the pipe is cylindrical withone closed and one open end. what is the wavelength of the 2nd harmonic?
How long would it take her to reach the bottom of the hill, assuming she starts from rest and accelerates uniformly, if the elevation change is 324.
question a blue ball is thrown upward with an initial speed of 21.2 ms from a height of 0.5 meters above the ground.
According to the shop manual, when drilling a 13.0-mm-diameter hole in wood, For a 13.0-mm-diameter drill bit turning at a constant 1400rev/min , find the maximum linear speed of any part of the bit
A block of mass m = 3 kg is attached to a spring (k = 27 N/m) by a rope that hangs over a pulley of mass M = 7 kg and radius R = 9 cm, Find the maximum extension of the spring
An unknown gas is introduced into the aforementioned apparatus using the same tuning fork, and the first resonance occurs, Find the speed of sound in the gas
Bats emit sounds of frequencies around 35.0 kHz and useecholocation to find their prey. What frequency is heard by the insect
A rod of mass 0.720 kg and radius 6.00 cm rests on two parallel rails (see figure below) that are d = 12.0 cm apart and L = 45.0 cm long. what is the speed of the rod as it leaves the rails
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