Anorthbound two-lane (one direction) segment of freeway currently has a measured density of 32.0 pc/mi/ln and a measured free-flow speed of 65 mi/hr. the peak-hour factor is 0.95, the traffic stream contains 7% single-unit trucks and 3% tractor-trailer trucks. the freeway segment is a on 3.5% upgrade that is ¾ of a mile long. with the peak hour factor unchanged, how many trucks (assuming the same st/tt split and et_new = 2.35) can be added to the peak hour factor before capacity is reached?

Ajournal bearing has a journal diameter of 3.250 in with a unilateral tolerance of 20.003 in. the bushing bore has a diameter of 3.256 in and a unilateral tolerance of 0.004 in. the bushing is 2.8 in long and supports a 700-lbf load. the journal speed is 900 rev/min. find the minimum oil film thickness and the maximum film pressure for both sae 20 and sae 20w-30 lubricants, for the tightest assembly if the operating film temperature is 160°f. a computer code is appropriate for solving this problem.

Aquick transition of the operating speed of a shaft from its critical speed will whirl amplitude. (a) increase (b) limit (c) not affect (d) zero

Prove the equivalence between the two statements of the 2nd law of thermodynamics (i.e., a violation of one statement leads to the violatio the other statement)