Ǝɔɐɟɹns s'uooɯ uo puoɔǝs pǝddǝʇs oɥʍ

~ uoᴉʇsǝnb sᴉɥʇ ɹǝʍsuɐ uɐɔ snᴉuǝƃ ɐ ʎluo

Air enters a compressor operating at steady state at 1.05 bar, 300 k, with a volumetric flow rate of 93 m3/min and exits at 12 bar, 400 k. heat transfer occurs at a rate of 15.5 kw from the compressor to its surroundings. assuming the ideal gas model for air neglecting kinetic potential energy effects, determine the power in put in kw.

Awoman stands a distance d from a loud motor that emits sound uniformly in all directions. the sound intensity at her position is an uncomfortable 2.0×10-3 w/m2. at a distance 2.6 times as far from the motor, what are (a) the sound intensity and (b) the sound intensity level relative to the threshold of hearing?

The coefficient of friction is a number that represents the resistance to sliding between two in contact with one another.