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A flying buttress transmits a load P = 25 kN, acting at an angle of 60° to the horizontal, to the top of a vertical buttress AB (see figure). The vertical buttress has height h = 5.0 m
and rectangular cross section of thickness t = 1.5 m and width b 1.0 m (perpendicular to the plane of the figure). The stone used in the construction weighs = 26 kN/m3 . What is the required weight W of the pedestal and statue above the vertical buttress (that is, above section A) to avoid any tensile stresses in the vertical buttress?
A 210 pound man sits in a lawn chair on a driveway. The chair has 4 solid wooden legs at 2'' dia each. The allowable stress on the driveway is 15 psi. Does the Driveway hold?
a piston cylinder system stores 15 kg of water that is initially at 120 degrees celsius with 0.25 quality. a two step
A 40-mm-long, 2-mm-diameter pin fin is fabricated of an aluminum alloy (k = 140 W/m · K). (a) Determine the fin heat transfer rate for Tb = 50°C, Too = 25°C, h = 1000 W/m2 · K, and an adiabatic tip condition.
a unifrom circular disk which rolls with a velocity v without slipping encounters an abrupt change in the direction of
a small high-speed turbine operating on compressed air produces a power output of 0.1 hp. the inlet state is 60 psi 102
Steady State Thermal analysis can be use to simulate and obtain results to support the design optimization / objectives
A solar water heater operating at steady state heats water from 90F to 120F. The panel is 3600 Btu/hr. Determine 1) the mass flow rate of the water in lb/min and 2) the volume of 120F water after 1 hour in gallons.
consider a non-ideal vapor-compression cycle where refrigerant 134a flows at a rate of 0.05 kgs. the refrigerant enters
Design a logic diagram that incorporates the state of all four devices (S, D, M, and T ) and produces the correct on/off condition for the motor start-up.
a couple m will be applied to a beam of rectangular cross section that is to be sawed from a log of circular cross
White noise has a constant level when measured in frequency bands of constant width. Suppose a noise generator produces white noise over the octave bands 0.5,1,2,4,8 khz. Find the overall unweighted and a-weighted sound pressures if a sound pressure ..
water vapor enters a turbine operating at steady state at 30 mpa 600 oc and expands adiabatically to 6 mpa. if the
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