Determining the minimum nonzero thickness
A nonreflective coating (n = 1.24) covers the glass (n = 1.52) of a camera lens. Assuming that the coating prevents reflection of yellow-green light (wavelength in vacuum = 563 nm), determine the minimum nonzero thickness that the coating can have.
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The distance between the objective and eyepiece is 14.0 cm. If a blood cell subtends an angle of 2.1 x 10-5 rad when viewed with the naked eye at a near point of 24.0 cm, what angle (magnitude only) does it subtend when viewed through the microscop
A nonreflective coating (n = 1.24) covers the glass (n = 1.52) of a camera lens. Assuming that the coating prevents reflection of yellow-green light (wavelength in vacuum = 563 nm), determine the minimum nonzero thickness that the coating can have
A turbine takes in 2 kg/s neon at 27 degC and 200kPa with negligible velocity. The produced work is 75 kW and 30 kW of heat leaks into the turbine from the surroundings. The neon exits at 100 kPa and 230 K.
The starting current in a dc motor is 20 A but it normally operates on 110 volts with a back emf of 90 volts. What is the resonance in the windings? What is te current at normal load?
A differential pressure is measured with a U-Tube monometer having water as the manometer fluid. The results of the measurement indicate that increased sensitivity would reduce resolution uncertainty, which is too high.
When the hydrofoil shown was tested, the minimum pressure on the surface of the foil was found to be 70 KPa absolute when the foil was submerged 1.8 m and towed at a speed of 8 m/s. at the same depth, at what speed will cavitation first occur?
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