A2-m3 rigid insulated tank initially containing saturated water vapor at 1 mpa is connected through a valve to a supply line that carries steam at 400°c. now the valve is opened, and steam is allowed to flow slowly into the tank until the pressure in the tank rises to 2 mpa. at this instant the tank temperature is measured to be 300°c. determine the mass of the steam that has entered and the pressure of the steam in the supply line.

If you were designing a bumper for a car, would you prefer it to exhibit elastic or plastic deformation? why? consider the functions of a bumper in both a minor "fender-bender" and a major collision.

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

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