Consider a 2024-t4 aluminum material with ultimate tensile strength of 70 ksi. in a given application, a component of this material is to experience ‘released tension’ stress cycling between minimum and maximum stress level of 0 and ksi. as an engineer, you want to have 99.9% chance that the component does not fail before 1,000,000 cycles. what should be the value of

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