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The ground state 1s1 H atom has two hyperfine states, F = 0 and F = 1, which correspond to different relative orientations of the nuclear spin and electron spin. The transition between these two states has a wavelength of 21 cm and is one of the most important transitions in observational astronomy. The shape of our galaxy and many of its other properties were determined by measurements of this transition. Calculate the fraction of H atoms in each of these states at a temperature of 100 K. he F = 1 state is the ground state and there are no other states with significant population.
One side of a mercury manometer is connected to the top of frictionless piston-cylinder storage tank containing 1500 liters of oil, the other side is open to the atmosphere. The difference in the height of the column of mercury in the manometer is 90..
This means that each advertising dollar has to generate at least $10 of sales or the advertising is not cost-effective. Use regression to determine whether advertising dollars are generating this type of sales response.
a rigid tank is divided into two equal parts by a partition. one part of the tank contains 2.5 kg of compressed liquid
determine the compressor work input requireed to compress steam isentropically from 100 kpa to 1 mpa assuming that the
Assume that you wish to accumulate the same amount of money on your 65th birthday as you had in the previous problem, but you don't start saving until your 40th birthday. How much would you need to save each month?
Write a project lab report about the given structure. I need some one to write a final project lab report. In the attachment you will find the experiments we have done in this class, also you will find photos of the final product that we have done.
A plane can fly 305 mph in still air. If it can fly 185 miles downwind in the same amount of time it can fly 120 miles upwind, find the velocity of the wind.
State the position and magnitude of the maximum bending moment in the beam.
You would like to produce a gray iron casting that freezes with no primary austenite or graphite. If the carbon content in the iron is 3.5%, what percentage of silicon must you add?
A heat pump is used to heat a building. The outside air temperature is -10 C and the desired inside temperature is 20.3 C. The heat loss through the walls, ceiling, etc, is 30 kW. Determine the ideal coefficient of performance and the minimum power r..
What is the pressure pA in the figure? The specific gravity of the oil is 0.8.- Find the difference in pressure between tanks A and B, if d1 = 2ft, d2 = 6 in., d3 = 2.4 in., and d4 = 4 in.
consider a cross flow of water saturated water that comes at 20c with a velocity of 5 ms on the surface of a
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