Alow-speed cessna 150 flying at 5,000 ft pressure altitude has an indicated airspeed of 250 ft/s. if the outside temperature is 30°f and there is a 50-ft/s headwind, what is the aircraft's ground speed? (the airspeed indicator of the plane indicates the equivalent airspeed, not the true airspeed.)

The temperature of air decreases as it is compressed by an adiabatic compressor. a)- true b)- false

Coiled springs ought to be very strong and stiff. si3n4 is a strong, stiff material. would you select this material for a spring? explain.

Afull journal bearing has a journal diameter of 27 mm, with a unilateral tolerance of -0.028 mm. the bushing bore has a diameter of 27.028 mm and a unilateral tolerance of 0.04 mm. the l/d ratio is 0.5. the load is 1.3 kn and the journal runs at 1200 rev/min. if the average viscosity is 50 mpa-s, find the minimum film thickness, the power loss, and the side flow for the minimum clearance assembly.