3. What is the face of a weld?
What will be an ideal response?
Its front surface
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Liquid ethanol with a density of 49.3 lbm/ft3 flows through a nozzle. At the inlet of the nozzle, the ethanol has a velocity of 10 ft/s, and the velocity of the ethanol at the outlet is 110 ft/s. The cross-sectional area of the outlet is 0.0075 ft2.
(a) Determine the cross-sectional area of the outlet, assuming that the nozzle operates at steady-state, steady-flow conditions. (b) Using your equations, for a constant outlet condition, plot the cross-sectional area of the nozzle inlet as the inlet velocity varies from 2 ft/s to 100 ft/s. Given: p= 49.3 lbm/ft3; V1 = 10.0 ft/s; V2 = 110 ft/s; A2 = 0.0075 ft2 What will be an ideal response?What will be an ideal response?
Tube growth is most closely defined as:
a. a process of thermal expansion where the tubes expand evenly in all directions. b. a process of thermal expansion where the tubes expand length-wise. c. a process of thermal expansion, corrosion, and time. d. a process associated with expansion and contraction at the tube sheet.
Specifications describe which of the following?
A. site location B. project financing plans C. code requirements D. design team qualifications
Graph the magnitude of the CTFT of x(t) = 8 rect(3t). This signal is not bandlimited so it cannot be sampled adequately to exactly reconstruct the signal from the samples. As a practical compromise, assume that a bandwidth which contains 99% of the energy of x(t) is great enough to practically reconstruct x(t) from its samples. What is the minimum required sampling rate in this case?
X( f ) = (8/3) sinc( f /3)