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Noise loss:-
A delicate electronic instrument normally operates at 20? C with a signal-tonoise ratio of 100. If it is taken to the desert and operated at 40? C, by what percentage will its capacity be reduced?
Develop a mathematical model (differential and algebraic equations) that describes the exit temperature if heat losses to the ambient occur and if the ambient temperature (Ta) and the incoming stream's temperature (Ti) both can vary
If a double-effect evaporator system is used with forward feed and U = 450 Btu/h-ft2-°F and 112 = 350 Btu/h-ft2-°F, and a vapor- space pressure of 4 in. Hg in the second effect determine the heat- transfer area of each effect, assuming equal areas..
For the design of internal-pressure cylindrical vessels, the API-ASME Code for Unified Pressure Vessels recommends the following equations for determining the minimum wall thickness when extreme operating pressures are not involved:
Propane gas at 22 bar and 423 K is throttled in a steady-state flow process to 1 bar. Estimate the entropy change of the propane caused by this process. In its final state, propane may be assumed to be an ideal gas.
what is the power requirement of the compressor and what is the discharge temperature of the propylene?
A stream that contains a mixture of methane (25% by mol) and carbon monoxide is compressed from 1 bar, 35 to 12 bar. The compressor efficiency is 90%. Treating the mixture as an ideal gas, calculate the required work.
Find the -6 dB width of the envelope of a time pulse and the two end frequencies needed to scan a 1 mm thick slice from -15 cm to +15 cm around an isocenter on the z axis. Assume Gz = 0:5 T=m.
Using the results of part (a), show that the electrons will fail to reach the second plate if (see the attached file for the equation) where -e and m are the charge and mass of an electron.
Suppose the value of 25 is changed to 10 in the equation, defining am and a current pulse of 10mA (hyperpolarizes the membrane) is passed through the membrane of a squid giant axon for a very long time. At time t¼0, the current pulse is removed. S..
Find the total line current drawn by the motor when the developed torque is one-half the rated value.
Assuming the unknown acid has one acidic proton per molecule, what is the molecular formula of the unknown acid? Explain how you arrived at your answer.
Give the conclusions drawn form thermodynamics for single reactions.The following conclusions may be drawn from thethermodynamics;?The thermodynamic equilibrium constant is unaffected by the pressure of the system, by the presenceor absence ofiner..
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