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Gold (Au) forms a substitutional solid with silver (Ag). Compute the weight percent of gold that must be added to silver to yeild an alloy that contains 5.5e21 Au atoms per cubic centimeter. The densities of pure Au and Ag are 19.32 and 10.49 g/cm^3, respectively.
two reversible refrigeration cycles operate in series. the first cycle receives energy by heat transfer from a cold
a 50 cm long 800 w electric resistance heating element with diameter .5 cm and surface temperature 120c is immersed in 60 kg of water temperature to 80c. also determine the convection heat transfer coefficients at the beginning and at the end of t..
A hollow cylinder steel column of 5 m high is shortens by 0.03 cm under a compression load of 40, 000 kg. If the inner radius of the cylinder is 0.08 of the outer one, what is the outer radius?
Draw the T-s diagram (hint: it would help to begin with a schematic of the cycle) and.
what is the sine wave generated by a phasor of length 9, rotating with an angular velocity of 325 rad/s; and with the phase angle of 0."
Employing the ideal gas model, determine the change in specific entropy between the indicated states, in Btu/lbmol?ºR. Solve 2 ways: Use the appropriate ideal gas table AND also by using a constant specific heat value.
an elastic exercise band is grasped and then is stretched. knowing that the tension in portion de of the band is 70
Make a form tool for lathe for making a convex groove of 3 mm radius. tool material will be tungsten carbide. Know the dimensions of tool.
experiment can be used to investigate heat transfer associated with flow past cylindrical tubes either in isolation or
Steam at 10bar and 0.95 dry flows at 130 m/sec in a pipe. It is throttled to 8 bar and the flow rate is 12 kg/sec. Assuming velocity in the pipe on the down stream side of the valve is 160 m/sec. Find the final condition of steam and the pipe diam..
the y-component of the force f which a person exerts on the handle of the box wrench is known to be 320newton. determine the x-component and the magnitude of force.
If the deflection of the gae fluid height, h, is 2 inches find the 1) velocity of the jet air and 2) the force exerted on the disk by the air.
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