Vehicles begin to arrive at a parking lot at 6: 00 a. m. at a rate 8 per minute. due to an
accident on the access highway, no vehicles arrive from 6: 20 to 6: 30 a. m. from 6: 30 a. m.
on, vehicles arrive at a rate of 2 per minute. the parking lot attendant processes incoming
vehicles (collects parking fees) at a rate of 4 per minute throughout the day. assuming
d/d/1 queuing, determine:

a. maximum queue
b. avg vehicle delay

Fluids at rest possess no flow energy. a)- true b)- false

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.

Slip occurs via two partial dislocations because of (a) the shorter path of the partial dislocation lines; (b) the lower energy state through partial dislocations; (c) the charge balance.