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If the incident light is unpolarized, about what percentage (0 to 100) of the light intensity gets through a plane polarizer? If the incident light is unpolarized, what percentage (0 to 100) of the light intensity is is passed by a combination of the first polarizer and a second which has its polarization axis 45ˆ with respect to the first? If the indicent light is unpolarized, two polarizers aligned so that they are perpendicular will allow no light to pass through. If you insert a third polarizer in between them with its polarization axis at 45ˆ with respect to both of their polarization axes, what percentage (0 to 100) of the incident light will get through all three? (Hint: its not zero)
q1. a metal sphere has a charge of 8.9x10-6c. what is the net charge after 8.8 x 1013 electrons have been located on
In a pool game, the cue ball, which has an initial speed of 5m/s, makes an elastic collision with the eight ball, which isinitially at rest. Find the direction of motion of the cue ball after the collision
pivot without friction about the point O. This pendulum is released from rest in a horizontal position, How far does the block move before coming to rest
A piano tuner hears 2.0 beats per second between his 440 Hz tuning fork and a piano wire that has a lower pitch sound
a positive charge of 0.900u c is located in a uniform field of 9.00times104 nc. a negative charge of -0.200u c is
A ten pound car wheel has a moment of inertia of 0.3 kg m2. How much torque is required to stop the wheel
A copper rod has a length of 1.0 m and a cross-sectional area of 4.1 x10-4 m2. What is the mass of ice per second that melts
A helium-neon laser of the type often found in physics laboratories has a beam power of 4.00 mW at a wavelength of 633 nm. Calculate the force exerted on this sphere
q1. if the weight of a room full of water is so great why dont the first floors of houses built over basements all
If the string makes an angle of 29? with the vertical, find out the centripetal force experienced by the ball. The acceleration of gravity is 9.8 m/s2 .
An object is 24.2 cm from the center of a silvered spherical glass Christmas tree ornament 5.90 cm in diameter. What is the magnification of its image
A soccer player kicks a rock horizontally off a 34.0-m-high cliff into a pool of water. what was the initial speed given to the rock
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