Estimate the concentration of CO at the downwind edge of a city. The city may be considered to function as three parallel strips, located perpendicular to the wind. For all of the strips, the wind is measured at 10 m height using an anemometer. The wind speed is 3 m/s. Use the wind speed at one half the mixing depth.

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

Draw the engineering stress-strain curve for (a) bcc; (b) fcc metals and mark important points.