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Two polarizers are aligned such that their polarization axes are perpendicular to one an other. A third polarizer is placed between these two with a polarization axis that makes an angle theta with that of the first polarizer. Unpolarized light of intensity I0 passes through this three polarizer set up. What is the intensity of the transmitted beam? For what angle theta is this intensity maximized?
Argon is a monatomic gas whose atomic mass is 39.9 u. The temperature of eight grams of argon is raised by 71 K under conditions of constant pressure. how much heat is required
An antitank weapon fires a 4kg rocket which acquires a speed of 50.0 m/s after travelling 90 cm down a launching tube. Assume the rocket was accelerated uniformly, what is the average force acted on it.
A block is pushed up a 20 degree friction-less incline with an initial speed 12.0 m/s. How high up the plane does the block slide before coming to rest
When the Sun is directly overhead, a hawk dives toward the ground with a constant velocity of 5.70 m/s at 55.0° below the horizontal
Lasers are classified according to the eye-damage danger they pose. Find the peak electric field in the laser beam
Small spheres of diameter 0.92 mm fall through 20°C water with a terminal speed of 0.90 cm/s. Calculate the density of the spheres
The displacement from equilibrium of an oscillating weight suspended by a spring
A softball of mass 0.220 kg that is moving with a speed of 5.5 m/s (in the positive direction) collides head-on and elastically with another ball initially at rest. Calculate the mass of the target ball
Estimate the temperature of a blacktop road on a sunny day - Show that the spectrum of thermal radiation for T=300K peaks at approximately 10 microns.
A rifle with a weight of 20 N fires a 3.0 g bullet with a speed of 260 m/s. If a 700 N man holds the rifle firmly against his shoulder, find the recoil speed of the man and rifle
A satellites are placed in a circular orbit that is 3.84 × 108 m above the surface of the earth. What is the magnitude of the acceleration due to gravity
For red light (lamda = 0.64um), ni in pure water is approx 1.3 x 10^-8; for blue light (lamda = 0.48um), ni is approx 1.0x10^-9. The deep end of a typical home swimming pool is approx 2.5m deep.
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