Physics, 07.03.2020 03:13 khalilah2000ortbfy
A single-slit diffraction pattern is formed on a distant screen. Assuming the angles involved are small, by what factor will the width of the central bright spot on the screen change if the slit width is cut in half? It will become eight times as large. It will be cut in half. It will double. It will become four times as large. It will be cut to one-quarter its original size.
Answers: 2
Physics, 22.06.2019 03:40
Which types of electromagnetic waves have higher frequencies than the waves that make up ultraviolet light? check all that apply. radio waves infrared light microwaves gamma rays visible light x-rays
Answers: 2
Physics, 22.06.2019 10:30
Air is to be preheated by hot exhaust gases in a cross-flow heat exchanger before it enters the furnace. air enters the heat exchanger at 95 kpa and 20°c at a rate of 0.6 m^3/s. the combustion gases (cp = 1.10 kj/kg°c) enter at 160°c at a rate of 0.95 kg/s and leave at 95°c. determine the rate of heat transfer to the air and its outlet temperature.
Answers: 2
A single-slit diffraction pattern is formed on a distant screen. Assuming the angles involved are sm...
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