What is the index of refraction of the reflecting material
It is found that the reflected light from a surface is completely polarized when the angle of incidence is 53.8 degrees. What is the index of refraction of the reflecting material?
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For a situation where safety rules require that the burst pressure of a tank is at least four times the maximum internal pressure expected, determine the burst pressure requirement to be specified for a tank that will contain n-pentane at a maxim
A lens has a focal length of 23.0 cm. Determine (by calculation) the object position for which the resulting image is upright and 4 times the size of the object.
Two blocks of steel (Cp=0.11 Btu/lbm ºF), one at 800ºF and the other at 300ºF are brought into contact in an insulated container and allowed to reach thermal equilibrium. What is the change in entropy of the universe?
An air intake duct has a 14'x14' opening, the duct is 18' long with an exaust opening at the other end that is 14'x1' giving a 14 to 1 ratio. As a percentage what is the increase in wind velocity coming out?
If the tile-iron has a square surface area 254mm to the side, how much energy has been removed from it during the time it has taken to lift the tile?
In a dice game, if a players rolls a 5 or a 7 she wins $10.00. if she rolls a 9, she wins 5.00 .. the cost to play the game is $2. What is the expection?
A stream of methane initially at 60 °F and 400 psia is compressed in a single stage compressor to 1000 psia by a compressor with an operating efficiency of 0.85.
The slab has a uniform positive charge density p. Now let the charge density of the slab be given by p(x) = p0(x/d)^2, where p0 is a positive constant.
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