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An A/D converter is to be supplied for an experimental transducer that has a dynamic range of 45 dB and a maximum voltage of 90 mV. Determine the number of bits for the converter to ensure a resolution of ±0.2 dB at the 0 dB condition.
A shaft with a 2-inch outer diameter must deliver 5000 ft-lbs of torque. The shaft must be hollow and must simultaneously carry hydraulic fluid at an internal pressure of 30,000 psi. Assuming the shaft is closed-ended, and using the von Mises yield c..
Consider an air cooler where the flow rate of liquid is large compared to the air, and the effectiveness, e, of the cooler is known to depend on the flow rate of air according to the relation, e ~ mair^-0.3 . The air inlet temperature is 25oC and the..
A single moist air stream exits at 85°F, 1 atm, and 35% relative humidity. Determine the rate of heat transfer to the device, in Btu/min.
Saturated liquid water at 25°C is pumped to a pressure of 5MPa in an isothermal process. The specific work required by the pump to pressurize the water to 5MPa can be found as the change in enthalpy of the water from the inlet pressure to the outlet ..
a 80 kg resting person with a constant core temperature near 37 c transfers heat at the resting rate to hisher
Consider a three-point moving-average discrete-time filter described by the difference equation y [ n ) = t{x[ n ) +x [ n - 1) +x [ n - 2]}
the uniform beam ab in figure 12.39 has a mass of 900 ibm. g sub l is equal to 32.1740 ftsecsec.a. for a force f of
water at 20 mpa and 60 degrees celcius enters a mixing chamber at a rate of 280lbmmin where it is mixed steadily with
Consider atmospheric air at 25°C and a velocity of 25 m/s flowing over both surfaces of a 1-m-long flat plate that is maintained at 125°C. Determine the rate of heat transfer per unit width from the plate for values of the critical Reynolds number..
Steam at 75kPa and 13 percent quality is contained in a spring loaded piston-cylinder device with an initial volume of 3.90m^3. Steam is now heated until its volume is 9.75m^3 and its pressure is 300kPa. Determine the heat transferred to and the word..
consider two solid blocks one hot and the other cold brought into contact in an adiabatic container. after awhile
The maximum take-off mass of an Airbus A380 passenger jet is about 600 000 kg. The lift is provided by the wings, which have a total area of 845 m2.
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