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A beam of unpolarized light shines on a stack of five ideal polarizers, set up so that the angles between the polarization axes of pairs of adjacent polarizers are all equal. The intensity of the transmitted beam is reduced from the intensity of the initial beam by a factor of ? = 0.165. Find the angle between the axes of each pair of adjacent polarizers.
Blocks with masses of 2 , 4 , and 6 are lined up in a row on the frictionless table. All three are pushed forward by a 56 force applied to the 2 block. How much force does the 4 block exert on the 6 block.
The speed of light in a certain substance is 93.1% of its value in water. For water, n = 1.33. What is the index of refraction of the substance
A vertical scale on a spring balance reads from 0 to 235 N . The scale has a length of 10.5cm from the 0 to 235 N reading. what is the mass of the fish
A certain digital camera having a lens with focal length 7.5 cm focuses on an object 1.80m tall that is 4.35m fromt he lens. How far must the lens be from the photocells
Four people with a combined mass of 300kg are riding in a 1100kg car. When they drive down a washboard road with bumps spaced 5.1m apart, How much does the car rise up on its springs
A 1kg ball with a speed of 3 m/s collides head on, elastically, with a 2 kg ball moving at 1 m/s. What will be the velocity of each ball after the collision
An electric field of intensity 3.5*103N/C is applied the x axis. Calculate the electric flux through a rectangular plane 0.35m wide and 0.70m long
It has been suggested that rotating cylinders about 10 mi long and 5.0 mi in diameter be placed in space and used as colonies. What angular speed should such a cylinder have so that the centripetal acceleration at its surface equals the free-fall ..
A student ate a Thanksgiving dinner that totaled 3000Cal . He wants to use up all that energy by lifting a 30-kg mass a distance of 1.0 m. How many times must he lift the mass
A system undergoes a 2-step process. In the first step, the internal energy of the system increases by 228J when 166J of work is done on the system. What type of process is the overall process
A laboratory technician drops an 83.5g solid sample of unknown material at a temperature of 100?C into a calorimeter. Compute the specific heat capacity of the sample
While taking a walk around your neighborhood, you see a flash of lightning hit the Earth in the distance. How far away did the lightning strike the ground
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