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Two polarizers are oriented at 73° to one another. Unpolarized light falls on them. What fraction of the light intensity is transmitted?
a current of 18.20 ma is maintained in a single circular loop with a circumference of 3.31m. a magnetic field of
A gyroscope slows from an initial rate of 32.0 rad/s at a rate of . How many revolutions does it make before stopping
while Jo moves off in the opposite direction at a speed of 0.946m/s. assuming that friction is negligible, find out Al's mass.
A 0.498 kg air cart is attached to a spring and allowed to oscillate. Calculate the maximum kinetic energy of the cart
1 to work on your car at night you use an extension cord to connect your work light to a power outlet near the door.
1.76- block at rest on a ramp of height. While the block is released, it slides without friction to the bottom of the ramp, and then continues across a surface that is frictionless except for a rough patch of width 12.0 that has a coefficient of kine..
A 2.0-kg object is at rest at the top of an inclined plane that makes an angle of 30° with the horizontal and which has a rise of 0.40 m. How much work is done by the object in sliding down the inclined plane
a falling rubber ball bounces off the floor. the velocity just before it hits the floor is Vi= (2.7m/2) x + (5.2m/s)y. what is the change in momentum of the ball from just before to just after it is in contact with the floor
A magnetic field points perpendicular into a 5x12 cm rectangular coil of 44 turns and resistance .25 omega. what magnitude of emf is being induced in the coil
A parallel-plate capacitor has 1.65 cm2 plates that are separated by 4.17 mm with air between them, how much energy does it store
A fan rotating at 20 rpm slows down by a constant acceleration and comes to a stop in a time of 4.7 s. What is its angular displacement in this time? Give your answer in radians, do not enter units.
Three uniform spheres are located at the corners of an equilateral triangle. Each side of the triangle has a length of 1.40 m. obtain the magnitude of the initial acceleration of the third sphere
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