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You use a sequence of ideal polarizing filters, each with its axis making the same angle with the axis of the previous filter, to rotate the plane of polarization of a polarized light beam by a total of 40.0°. You wish to have an intensity reduction no larger than 5.3%.
(a) How many polarizers do you need to achieve your goal?
(b) What is the angle between adjacent polarizers?
°
A car travels north at 28.9 m/s for 14.3 min. It then travels south at 40.1 m/s for 28.5 min. a) What is the total distance the car travels? b) What is the displacement of the car?
A 200 gm block of metal is heated to 100 degrees Celcius in boiling water. This block is after placed in an aluminum calorimeter cup (mass - 30gm; c - .22 cal/g degrees C) containing 180 gm of water at 20 degrees C.
Solar energy is incident on the pond at an average rate of 400 . If the water absorbs all the solar energy and does not exchange energy with its surroundings, explain how many hours will it take to warm from 15 to 25 ?
How is the voltage divided among resistors in parallel and What happens to resistance when resistors are connected in parallel
A 100.0 kg box is pushed by a horizontal force F at constant speed up a frictionless ramp which makes an angle of 36.0 deg with the horizontal. Find the magnitude of the applied force
A projectile is fired at an upward angle of 45 degrees from the top of a 265 m cliff with a speed of 350 m/s. Illustrate what will be it's speed when it strikes the ground below?
Ball A has a mass of 0.90 kg and moves with an initial speed of 10.60 m/s. It collides with stationary balls B and C, whose centers are on a line vertical to the initial velocity of ball A and that are initially in contact with one-another.
In a hot star, because of the high temperature, an atom can absorb sufficient energy to remove several electrons from the atom. Find the wavelengths of the next three spectral lines nearest to the line of longest wavelength
A parachutist with a camera, both descending at a velocity of 12 m/s, releases that camera at an altitude of 120 m.
Birds resting on high-voltage power lines are a common sight. The copper wire on which a bird stands is 2.5 cm in diameter, calculate the potential difference between its feet
Determine the simple harmonic motion of the spring what ac velocity is ball moving
How much time passes by they collide
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