The following eneingeering stress-strain data were obtained at the beginning of a tensile test for 0.2% C plain-carbon steel.
a. Plot the engineering stress-strain curve for these data.
b. Determine the 0.2 percent offset yield stress for this steel.
c. Determine the tensile elastic modulus of this steel.

Engr Stress(ksi) Engr Strain (in/in)
0 0
15 0.0005
30 0.01
40 0.0015
50 0.002
60 0.0035
66 0.004
70 0.006
72 0.008

The mass flow rate of the fluid remains constant in all steady flow process. 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

You are making beer. the first step is filling the glass carboy with the liquid wort. the internal diameter of the carboy is 15 in., and you wish to fill it up to a depth of 2 ft. if your wort is drawn from the kettle using a siphon process that flows at 3 gpm, how long will it take to fill?