Doppler shifted to green
A physics professor claims in court that the reason he went through the red light (λ = 660 nm) was that, due to his motion the red color was Doppler shifted to green (λ = 520 nm). How fast was he going?
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The refrigerant-134a changes from saturated liquid to saturated vapor at 70 C during the addition process. Determine the net work output of this engine per cycle.
The work output of the engine is 9*10^5 J in each cycle. Compute the temperature of the reservoirs between which the engine operates.
One kilogram of carbon dioxide (CO2) gas (M = 44.01 kg/kmol) is filled in a frictionless piston-cylinder assembly. Is the ideal gas model applicable for both the initial and final states of the CO2 gas?
In statistics, is the cumulative distribution function always non-decreasing?
At the compressor inlet, the gas temperature is 30°C. If kinetic and potential energy effects are negligible, determine the gas temperature at the compressor exit.
A compound consists of 93.75% carbon and 6.25% hydrogen. The substance dissolves in benzene, and 6.14 g of it lowers the freezing point of 100 g of benzene 2.45 Celsius.
Using the knowledge that the air in bell will change in volume and water will rise into bell by a bit, find the height that water rises into the bell.
How to determine the carbondioxide content of the air in your lungs as a function of time after inhalation by a procedure that requires titration?
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