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A light beam traveling through air, enters a slab with n= 2.50 at a 45º angle with respect to the normal, then exits the bottom of the slab into water. At what angle to the normal does the ray leave the slab?
We wish to coat flat glass (n 1.50) with a transparent material (n 1.25) so that reflection of light at wavelength 600 nm is eliminated by interference. What minimum thickness can the coating have to do this
An ac source of period T and maximum voltage V is connected to a single unknown ideal element that is either a resistor, an inductor, or a capacitor. At time t=0 the voltage is zero.
the electron beam emerging from a certain high-energy electron accelerator has a circular cross section of radius 1.45
a uniform line charge extends from x - 2.7 cm to x 2.7 cm and has a linear charge density of 5.9 ncm.a find the
A rider on a motorcycle that hass a mass of 195 kg is traveling with a speed of 24 m/s. What is the approximate total rational kinetic energy of the wheels
two untethered astronauts at rest are in space when one pushes off the other. How far apart are the two astronauts after 1 minute
A thin layer of magnesium fluoride (n = 1.38) is used to coat a flint-glass lens (n = 1.61). (a) What thickness should the magnesium fluoride film have if the reflection of 717-nm light is to be suppressed? Assume that the light is incident at right ..
A closed auditorium of volume 25700 m3 is filled with 2050 people at the beginning of a show, and the air in the space is at a temperature of 291 K and a pressure of 1.013·10^5 Pa. by how much would the temperature (in K) of the air rise
A thermos contains 154 cm3 of coffee at 93.5 °C. Tocool the coffee, you drop two 12.7-g ice cubes into the thermos.The ice cubes are initially at 0 °C and melt completely. What is the final temperature of the coffee in degrees Celsius? Treatthe coffe..
A harpsichord string of length 1.65 m and linear mass density 24.4 mg/m vibrates at a (fundamental) frequency of 445 Hz. What is the speed of the transverse string waves
A projectile is fired at an upward angle of 45 degrees from the top of a 265 m cliff with a speed of 350 m/s. Illustrate what will be it's speed when it strikes the ground below?
Your car's 29.5 W headlight and 2.35 kW starter are ordinarily connected in parallel in a 12.0 V system. What power would one headlight and the starter consume
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