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For the 40 phon sound level shown in Fig. 11.12 an A/D converter is to be provided to assure a resolution of ±1 dB at the minimum SPL condition while also providing a voltage output of 0.4 V at the 80-dB SPL condition. Specify the number of bits required for the converter.
A simply supported beam is carrying a distributed and point load as are shown in the figure. Find the beam dimension a such that the normal stress in the beam does not exceed 2 MPa
What is the resolution error (or quantization error) if a +/- 10V DAQ card has a 3 bits? If a 10 Hz signal is sampled at 45 Hz. For an input frequency of 10 Hz, If you want at least 20 points/second, what should your sampling frequency be? If you wan..
gas with an initial volume of 0.36 m3 is slowly compressed to a final volume of 0.16 m3 by a process during which the
a hydrogen tank 25 cm in diameter and 80 cm in height is charged to 150 atmospheres at room temperature 25 c. a
Compare with the Moody chart and with Eq. (6.43).
Evaluate the steady-state surface temperature. If the heater is activated from an initial temperature of 27°C, estimate the time required for the surface temperature to come within 10°C of the steady- state value.
determine the time required by a diesel-electric locomotive which produces a constant drawbar pull of 60000 lb to
water flows as two free jets from the tee attached to the pipe shown below. thenbspexit speed is 15 ms. if viscous
a trailer truck enters a 2 percent uphill grade traveling at 72 kmh and reaches a speed of 108 kmh in 300 m. the cab
hot water at 90c enters a 15-m section of cast iron pipe whose inner diameter is 5.3 cm at an average velocity of
an otto cycle has the lowest t as 520 r and the lowest p as 12 psi. the highest t is 4500 r and combustion adds 500
a balanced wheel supported on springs is rotating at 1200 rpm. if a bolt weighing 15 g and located 5 cm from center
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