Physics, 16.09.2019 16:10 ewalker1917
Asource containing a mixture of hydrogen and deuterium atoms emits light at two wavelengths whose mean is 513 nm and whose separation is 0.139 nm. find the minimum number of lines needed in a diffraction grating that can resolve these lines in the first order.
Answers: 3
Physics, 22.06.2019 05:10, zionnahl
Total solidification times of three casting geometries are to be compared: a sphere, a cylinder, in which the length-to-diameter ration - 1.0, and a cube. volume = 1000 cm^3 for all three shhapes, and the same casting alloy is used. a) determine the solidification times of each geometry b) based on the results of part (a), which geometric element would make the best riser? c) if the mold constant = 3.5 min/cm^2 in chvorinov's rule, compute the total solidification time for each casting.
Answers: 3
Physics, 22.06.2019 13:10, alejandramirand9836
A0.750 kg aluminum pan is removed from the stove and plunged into a sink filled with 10.0 kg of water at 293 k. the water temperature quickly rises to 297 k. what was the initial temperature of the aluminum pan? the specific heat of aluminum is ca = 900 j/(kgk) and water is cw = 4190 j/(kgk)
Answers: 3
Physics, 23.06.2019 02:30, shahrukhafridi2668
What instrument is used to measure liquid volume?
Answers: 1
Asource containing a mixture of hydrogen and deuterium atoms emits light at two wavelengths whose me...
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