Scenario: You and three of your friends decide to hike the Appalachian Trail, a 2175-mile trail running from Georgia to Maine, starting when school ends for the year in June. A month into the trip, two of your friends realize they need to get summer jobs and quit the trail. You and your other friend decide to continue. As you are hiking Clingmans Dome in Tennessee (the highest elevation), you stumble on a rock and fall 14 feet down the mountainside. When you reach the plateau, you realize you cannot put any weight on your right leg. What do you do? My course of action is to:

If the thermal strain developed in polyimide film during deposition is given as 0.0044. assume room temperature is kept at 17.3 c, and thermal coefficient of expansion for the film and the substrate are 54 x 10^-6c^-1 and 3.3 x 10^-6c^-1respectively. calculate the deposition temperature.

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.

Air is to be cooled in the evaporator section of a refrigerator by passing it over a bank of 0.8-cm-outer-diameter and 0.4-m-long tubes inside which the refrigerant is evaporating at -20°c. air approaches the tube bank in the normal direction at 0°c and 1 atm with a mean velocity of 4 m/s. the tubes are arranged in-line with longitudinal and transverse pitches of sl- st 1.5 cm. there are 30 rows in the flow direction with 15 tubes in each row. determine (a) the refrigeration capacity of this system and (b) pressure drop across the tube bank. evaluate the air properties at an assumed mean temperature of -5°c and 1 atm. is this a good assumption?