Steady-state creep data taken for an iron at a stress level of 131 mpa are given here: ? ? (h^�1) ? [mpa (psi)]6.3*10^-4 10708.8*10^-2 1210if it is known that the value of the stress exponent n for this alloy is 8.6, compute the steady-state creep rate at 1290 k and a stress level of 86 mpa. (answer is in h^-1)

Acompressor receives the shaft work to decrease the pressure of the fluid. a)- true b)- false

For the closed feedwater heater below, feedwater enters state 3 at a pressure of 2000 psia and temperature of 420 °f at a rate of ix10 ibhr. the feedwat extracted steam enters state 1 at a pressure of 1000 psia and enthalpy of 1500 btu/lbm. the extracted er leaves at an enthalpy of 528.7 btu/lbm steam leaves as a saturated liquid. (16) a) determine the mass flow rate of the extraction steam used to heat the feedwater (10) b) determine the terminal temperature difference of the closed feedwater heater

The filament of an incandescent lamp has a temperature of 2000k. calculate the fraction of radiation emitted in the visible light band if the filament is approximated as blackbody