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As an engineer, you are required to coat a flat glass surface (n = 1.45) with a material (n = 1.55) so that the reflection of light at wavelength 590 nm is eliminated by interference.
What is the minimum thickness this coating needs to have to do this
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Suppose that in each case above you were to place a small paper screen at the image location. What you would see on the screen in each case? Imagine that the room is dark except for the small bulb.
A steel shaft 50 in. long and 1½ in. in diameter is used as a torsion spring for the wheels of a light automobile, as shown in Fig.
What is the largest asteroid from which you could escape by jumping vertically upward? Assume spherical geometry and a uniform density equal to the Earths average density.
A 0.500 kg solid mass is totally submerged in water while suspended from a spring balance. Calculate the volume of the solid mass
The staples inside a stapler are kept in place by a springwith a relaxed length of 0.115 m. If the spring constant is 51.0N/m, how much elastic potential energy is stored in the spring
A microphone is located on the line connecting two speakers that are 0.766 m apart and oscillating 180° out of phase. What is the next lowest frequency that produces an interference maximum at the microphone's location
Distance between focal plane and lens
A moving particle encounters an external electric field that decreases its kinetic energy from 9800 eV to 8350 eV as the particle moves from position A to position B. The electric potential at A is -43.0 V, and that at B is +23.0 V. Determine the ..
question1the bumper car with mass m1 109 kg is moving to the right with a velocity of v1 4.9 ms. the second bumper
A research submarine has a 10-cm-diameter window that is 8.7cm thick. What is the submarine's maximum safe depth in salt water
. This is a strong example of the conflict between doing the best we know for patients now and finding better treatments for other patients in the future. How can we ethically test new drugs for AIDS?
A helium-neon laser emits a beam of circular cross section with a radius r and a power P. Find the maximum electric field in the beam
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