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A low pass butter worth filter has a corner frequency of 1 khz and a roll-off of 24 db per octave in the stop band. If the output amplitude of a 3 khz sine wave is .1 V, what will be the output amplitude of a 20 khz sine wave if the input amplitudes are the same?
a composite wall made up of two materials. the temperatures on the left and right faces are maintained at constant
helium at 68 degrees farenheit and 14.7 psia in a large tank flows steadily and isentropically thorugh a converging
one car p heading north begins at rest and accelerates with acceleration a. the other car q begins with a velocity of
a water system is designed to produce drinking water in arid climates. it takes air at 90 degrees f 29.7 inhg and 95
a mass of 1200kg of fish at 20 celsius is to be frozen solid at -20 celsius. the freezing point of the fish is -2.2
for a separations process it is necessary to determine the vapor-liquid equilibrium compositions of a mixture of a and
A viscous fluid is contained between two infinitely long, vertical, concentric cylinders. The outer cylinder has a radius ro and rotates with an angular velocity v. The inner cylinder is fixed and has a radius ri. Make use of the Navier–Stokes equati..
Liquid octane (C8H18) at 77F, 1 atm enters a combustion chamber operating at steady state and burns completely with 50% excess dry air entering at 120F, 1 atm. The products exit at 1060F, 1 atm. Determine the rate of heat transfer between combustion ..
Calculate, using the psychometric equations presented in class, the humidity ratio, enthalpy, specific volume, and dew point of air at 27.4°C dry-bulb temperature and 43% relative humidity at standard atmospheric pressure (101.325 kPa). Verify your ..
the 300 kg and 400 kg mine cars are rolling in opposite directions along the horizontal track with the respective
a system receives 10 kj of energy to do something. the system is adiabatic and its super efficient. how much work
titanium w6.94x10-19j and silicon w7.77x10-19j surfaces are irradiated with uv radiation with a wavelength of 227nm.
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