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An ideal gas refrigeration cycle using air as the working fluid operates between the pressure limits of 80 and 280 kPa. Air is cooled to 35°C before entering the turbine. The lowest temperature of this cycle is
(a) -58°C
(b) -26°C
(c) 5°C
(d) 11°C
(e) 24°C
Two men A and B, each having a weight of 160lb stand on a200lb cart. Each runs with a speed of 3ft/s measured relativeto the cart. Determine the final speed of the cart if:
how many times will a piezoelectric fatigue testing machine take to conduct a fatigue test on a titanium alloy for 10^10
study the sources for current tuition rates and historical trends of tuition. assume that in the next 20 years tuition will change with a similar trend for all universities .
The number of telephone call coming in the business switchboard average 4 minutes/call. Let x be the number of calls received, Poisson variable.
A steady-state, incompressible two-dimensional velocity field (u,v) is given by the following components in the xy-plane u = 0.2 + 1.3x + 0.85y v = -0.5 + 0.95x - 1.3y
A 4-cm- diameter rod of aluminum 7075-T6 is to subjected to an axial tensile force such that the factor of safety based on the yield stress on 1.75. Find the maximum allowable tensile force. The yield stress of the aluminum 7075-T6 is o-y= 500MPa.
A ssume that one half of the energy incident on the collector goes to this reservoir, which, in turn, serves as a source for a heat engine. If the temperature of the atmosphere is 70 F,
A triaxial test was performed on a dry, cohesionless soil under confining pressure of 144 kN/m^2. If the sample failed when the deviator stress reached 395.8 kN/m^2, determine the soil's angle of internal friction.
A dam located in a channel of rectangular cross-section which carries water flowing at a rate of 8.75m3/s. The depth of water upstream of the dam is 2.5m
Find an equation of a plane containing the three points (-2, 5, -3), (-7, 3, 1), (-7, 4, 3) in which the coefficient of x is -8.
When the pressure drops across the basket strainer by half(i.e., to 0.5 bar after the strainer)at the 100 m3/hr flow rate, itis removed for cleaning. What is the local loss coefficient of thebasket strainer at this point
The flow depth and velocity before the jumo are 0.8 m and 7 m/s respectively. The flow depth and velocity after the jump are 2.46 m and 2.28 m/s respectivly. Assuming a flat channel, determine a) the energy loss due to the jump, hl (head loss)
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