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A specimen of aluminum having a rectangular cross section 9.7 mm × 12.4 mm(0.3819 in. × 0.4882 in.) is pulled in tension with 35400 N (7958 lbf) force, producing only elastic deformation. The elastic modulus for Al is 69 GPa (or 10 × 106 psi). Calculate the resulting strain.
Coal is discharged from the tailgate of a dump truck with an initial velocity vA = 2 m/s A 50°. Determine the radius of curvature of the trajectory described by the coal.
the concrete beam is reinforced with three 20-mm diameter steel rods. assume that the concrete cannot support tensile
(1) I shte cooling process polytropic? If so, what is the value of n? (2) Find the final state pressure. (3) Compute the work done for this process considering the water as a closed system.
question 1 give examples from your own experience of situations where friction is a desirable and b
a cylinder of cross-sectional area a is divided inot tow chambers 1 and 2 by means of a frictionless piston. the piston
a balloon behaves so the pressure is p c2v13 c2 100 kpam. the balloon is blown up with air from a starting volume of
a charge of -3.30 microc is fixed in place. from a horizontal distance of 0.0435 m a particle of mass 7.65 10-3 kg and
Determine a structures natural frequency. Sketch a typical time wave response curve of such a test, then label the impact point and indicate the test piece's natural frequency on the time waveform.
the transverse shear v at a certain section of timber beam is 25kn. if the beam has the cross sectio shown in the
1. assuming that the diameters of 1000 brass plugs taken consecutively from a machine form a normal distribution with
A 12 Volt battery is charged by supplying 3 Amps over a period of 6 hours. What is the change of energy stored in the battery if the battery loses 400kJ of heat during charging.
draw a block-diagram of a yaw rate damping system.include the following components the airframe the rudder actuator the
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