Ascraper is operating on an earthen road and has penetration of 2 in. this scraper has an evw of 90,000 lb and its gvw is 170,000 lb. the grade from cut to fill is 2.5%. a) calculate the total resistance in both pounds and equivalent grade b) using the performance chart given on slide 32 (numerical example 1 equipment power) determine the speed

Acompressor receives the shaft work to decrease the pressure of the fluid. a)- true b)- false

Assuming compressible flow of air and that the measurements are done at flagstaff a pitot static tube that gives the difference of total and static pressure measures 0.35 m of mercury. what is the velocity of air? assume the temperature to be 300k. (submit your excel or matlab calculation sheet)

Aturning operation is performed with following conditions: rake angle of 12°, a feed of 0.35 mm/rev, and a depth of cut of 1.1 mm. the work piece is aluminum alloy 6061 with t6 heat treatment (a16061-t6). the resultant chip thickness was measured to be 1.0 mm. estimate the cutting force, fc. use shear stress of 207 mpa and coefficient of friction on the tool face of 0.6.