The equilibrium melting point of pure nickel of zero curvature is 1726°k. by how much will the temperature be lowered if the nickel is a sphere 1 cm radius? 1 ,un radius? 0.01 um radius? deltah = 4,320 cal/mol, v = 6.6 cm3 /mol, a= 255 erg/cm2 (1 cal= 4.184 x 107 erg).

Refrigerant 134a enters an insulated compressor operating at steady state as saturated vapor at -26°c with a volumetric flow rate of 0.18 m3/s. refrigerant exits at 9 bar, 70°c. changes in kinetic and potential energy from inlet to exit can be ignored. determine the volumetric flow rate at the exit, in m3/s, and the compressor power, in kw.

Calculate the bore of a cylinder that has a stroke of 18 inches and an extension time of 6 seconds at a flow rate of 4 gal/min.

Which from the following instrument is commonly used to detect the high pitch butzing sound in bearings? [clo4] a)-digital ultrasonic meter b)-infrared camera c)-spectroscopic d)-vibrometer