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Calculate the intensity of light at the screen
First film polarization angle = 85second film polarization angle = 95intensity of light on screen = 0.48.
For a damped oscillator with a mass of 290 g, a spring constant 80 N/m and a damping coefficient of 57 g/s, what is the ratio of the amplitude of the damped oscillations to the initial amplitude at the end of 26 cycles.
If the electric field strength in air exceeds 3.0 ? 106 N/C, the air becomes a conductor, determine the maximum amount of charge that can be carried by a metal sphere4.9 m in radius
You are measuring the speed of a projectile using sonar. If the output frequency of 265.5 Hz is reflected back and received by the stationary sonar unit at 251 Hz, what is the speed of the projectile
an observer stands 25 m behind a marksman practicing at a rifle range. the marksman fires the rifle horizontally the
An ore sample weighs 17.0 N in air. When the sample is suspended by a light cord and totally immersed in water, Find the total volume of the sample
A brewery ferments beer in a raised and closed tank. The tank is a vertical cylinder, with a diameter 1.80m and contains fluid to a depth of 0.900m. How long does it take for all the beer to drain from the tank
The electric field everywhere on the surface of a thin, spherical shell of radius 0.785 m is of magnitude 850 N/C and points radially toward the center of the sphere. (a) What is the net charge within the sphere's surface? Please show work.
A floodlight with a mass of 20.0 kg is used to clarify the parking lot. The floodlight is supported at the end of a horizontal beam that is hinged to a vertical pole.
If you had two bars of iron – one magnetized and one un-magnetized – and no other material at hand, how could you determine which bar was the magnet. Explain.
A cylindrical electromagnet contains a uniformly magnetized core having a magnetization of 1.9 106 A/m, Find the magnetic field in the core
At a dock, a crane lifts a 1200 kg container 30 m, swings it out over the deck of a frieghter, How much work is done by the crane on the container
A radioactive atom is moving with respect to the laboratory (which is the Earth frame) at the speed of 0.8c in the +x direction. determine the velocity of the electron measured by a laboratory observer
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