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Effect of Back Pressure on Mass Flow Rate
Air at 1 MPa and 600°C enters a converging nozzle, shown in Fig. 17-24, with a velocity of 150 m/s. Determine the mass flow rate through the nozzle for a nozzle throat area of 50 cm2when the back pressure is
a) 0.7 MPa and
(b) 0.4 MPa.
A pressure drop of 200 kPa is measured over a 400-m length of 8-cm-diameter horizontal cast iron pipe that transports 20-C water. Determine the ?ow rate using (a) the Moody diagram and (b) an alternate equation.
a steel tensile specimen with starting gage length 2.0 in and cross-sectional area 0.5 in2 reaches a maximum load of
The output of the signal generator is changed to a sine wave at a frequency of 2000 Hz. The power level is not changed. What is the power (in dBW) dissipated in the resistor with the filter in place between the signal generator and load resistor?
Water at a local bulk temperature of 24°C flows at 0.8 m/s through a smooth, 1.5-cm-ID tube that is kept at 30°C and the flow is fully developed. The system is extremely clean and quiet, and the flow stays laminar until a noisy air compressor is turn..
determine the weight and cost of prepeg required to produce a hollow composite tube outside diameter 50mm wall
If there were a carbon tax of $250/ton of CO2 on fossil fuels, estimate the increase in the price of a barrel of oil. The density of oil is assumed to be 803 kg/m3. Use C8H18 for oil.
The streamlines in a certain incompressible, two-dimensional flow field are all concentric circles so that vr=0. Determine the string function for 1) V(theta)=Ar and for 2) V(theta)= Ar^(-1) where A is a constant in both cases. Use cylindrical coordi..
why do you think it is important to control the position of a dc motor? provide two examples for position control of
the golf ball is hit at a with speed of v40ms and directed at an angle of 30 degrees with the horizontal. determine the
What range of frequencies is represented in the DFT output?
at a point on the free surface of an alloy steel e 30000 ksi and v . 3 machine part normal strains of 1000 uinin
Calculate the shear force V and bending moment M
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