A remotely controlled model aircraft is powered by a miniature jet engine, comprising of a single-stage compressor, a combustion chamber, and a single-stage turbine. The jet engine
overall cycle pressure ratio rp = 4. It is started up in still air at ambient temperature T1 = 300 K,
ambient pressure p1 = 100 kPa, specific heat ratio k = 1.4. Make cold-air-standard
assumptions and determine the compressor exit pressure p2, the turbine entry pressure p3, and the compressor exit
temperature T2

The force on a cutting tool are 2600n vertically downward and 2100 horizontal. determine the resultant force acting on the tool and the angle at which it acts.

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.

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.