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Nuclear-pumped x-ray lasers are seen as a possible weapon to destroy ICBM booster rockets at ranges up to 2000 km. One limitation on such a device is the spreading of the beam due to diffraction, with resulting dilution of beam intensity. Consider such a laser operating at a wavelength of 1.40 nm. The element that emits light is the end of a wire with diameter 0.200 mm.
(a) Calculate the diameter of the central beam at a target 2000 km away from the beam source.
(b) By what factor is the beam intensity reduced in transit to the target? (The laser is fired from space, so that atmospheric absorption can be ignored.)
Write a Matlab program that converts from COEs (classical orbital elements) to position and velocity vectors
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It is determined by immersing a crown in water that its volume is 26inc^3=4.2x10^-4m^3. What would its weight be if it were made of pure gold
question11 in a youngrsquos double-slit experiment that uses electrons an angle that locates the first-order bright
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Two stretched cables both experience the same stress. The first cable has a radius of 3.1 times 10-3 m, and is subject to a stretching force of 230 N. The radius of the second cable is 4.6 times 10-3 m. Determine the stretching force on the second ca..
im looking at a 12th magnitude bright star. i find an average of 11 speckles of light in each 10ms image.assuming that
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