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The drag on a 2-m-diameter satellite dish due to an 80-km/hr wind is to be determined through a wind tunnel test using a geometrically similar 0.4-m-diameter model dish. Assume standard air for both model and prototype.(a)At what air speed should the model test be run?(b)With all similarity conditions satisfied, the measured drag on the model was determined to be 195 N. What is the predicted drag on the prototype dish?
Demonstrate suitable accuracy by using a simple hand calculation for the static analysis of the structure. Describe in detail the hand calculations performed to validate the final solution. What is the approximate error between the simplified hand..
Determines if the member forces are in tension or compression (note that a negative number denotes compression and a position number denotes tension)
on a cloudless day the sunlight that reaches the surface of the earth has an intensity of about 1.2 103 wm2. what is
A 12 kN force is exerted on a rocker arm. The moment of inertia (I) of the crosssection with respect to the neutral-axis is 43.3x10-9 m4.
in each case calculate the biot number for the object and indicate whether or not the lumped approximation is valid.a a
carbon dioxide enters an adiabatic diffuser at 220 ms 80 kpa and 127 degc at a rate of 1.5 kgs. if the carbon dioxide
A launch approaches a wharf at a speed of 10.5 knots(=5.4m/s).The engine are put in the reverse when the launch is 10 m from the wharf, the retardation being 1.25m/s squared. will the launch come to rest before hitting the wharf.. If not, with wha..
the steel pipe is filled with concrete and subjectednbspto a compressive force of 80 kn. determine the stress innbspthe
a molten mixture of salt nano3-kno3 is used as the heat transfer fluid for application in a parabolic trough solar
if the 1500-lb boom ab the 200-lb cage bcd and the 175-lb man have centers of gravity located at points g1 g2 and g3
The tank has a 180 mm inside diameter and a 12 mm wall thickness. Knowing that the tank contains compressed air under a pressure of 8 MPa, determine the magnitude T of the applied torque for which the maximum normal stress in the tank is 75 MPa.
a strain-rate dependence test is conducted on samples of al 6061-t6. two identical bars are tested. the first bar is
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