Engineering surveyA driver is traveling at 90 km/h down a 3% grade on good, wet pavement. An accident investigation team noted that braking skid marks started 75m before a parked car was

hit at an estimated 45 km/h. Ignoring air resistance, calculate the theoretical friction

coefficient.

The y form of iron is known as: a) ferrite b) cementite c) perlite d) austenite

Adouble-strand no. 60 roller chain is used to transmit power between a 13-tooth driving sprocket rotating at 300 rev/min and a 52-tooth driven sprocket. a) what is the allowable horsepower of this drive? b) estimate the center-to-center distance if the chain length is 82 pitches. c) estimate the torque and bending force on the driving shaft by the chain if the actual horsepower transmitted is 30 percent less than the corrected (allowable) power.

Determine whether or not it is possible to compress air adiabatically from k to 140 kpa and 400 k. what is the entropy change during this process?