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Consider light with an initial intensity, I0. Calculate the fraction of light that gets through the following setups: (a) A single polarizer, (b) Two polarizers with their transmission axes 30 degrees apart, (c) Three polarizers with the second polarizer 30 degrees from the first polarizer and the thrid polairzer 30 degrees from the second.
Decide the speed with the rock is thrown
The thrust produced by a single jet engine creates a force of F = 63000 N. It takes the jet (with a mass of m = 9300 kg) a distance of d = 0.75 km to take off. What is the take-off speed of the jet vt in m/s
A proton moves at a speed of 1100 m/s in a direction perpendicular to a magnetic field with a magnitude of 0.80 T
A sealed container has a volume of 0.0030m^3 and contains 30 g of molecular nitrogen which as a mass of 28u. What is the pressure of nitrogen gas
A tungsten wire has a radius of 0.070 mm and is heated from 20.0 to 1330 oC. The temperature coefficient of resistivity is ? = 4.5 x 10-3 (Co)-1, How long is the wire
A physicist has developed a device that generates a beam of alpha particles (each of which is a helium nucleus, consisting of two protons, two neutrons, and no electrons).
A lens forms an image of an object. The object is 16.0 cm from the lens. is it erect or inverted
A 2.70 uF capacitor is charged to 80 uC and then placed in series with a 6.4 M ohms resistor and an open switch. What is the initial voltage across the capacitor
An airplane is flying through a thundercloud at a height of 2400 m. (Flying at this height is very dangerous because of updrafts, what is the electric field at the aircraft
Find the mans rate of sweat production
A particle of mass 0.350 kg is attached to the 100-cm mark of a meterstick of mass 0.200 kg. Calculate the angular momentum of the system when the stick is pivoted about an axis perpendicular to the table through the 50.0-cm mark
A 4.1×104 locomotive, with steel wheels, is traveling at 7.0 on steel rails when its engine and brakes both fail. How far will the locomotive roll before it comes to a stop
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