Engineering
Engineering, 12.02.2020 02:52, adahlove

Ear "popping" is an unpleasant phenomenon sometimes experienced when a change in pressure occurs, for example in a
fast-moving elevator or in an airplane. If you are in a two-seater airplane at 3000 m and a descent of 100 m causes your
ears to "pop," what is the pressure change that your ears "pop" at, in millimeters of mercury? If the airplane now rises to
8000 m and again begins descending, how far will the airplane descend before your ears "pop" again? Assume a U. S.
Standard Atmosphere.

answer
Answers: 3

Other questions on the subject: Engineering

image
Engineering, 03.07.2019 14:10, BardiFan
Amass of m 1.5 kg of steam is contained in a closed rigid container. initially the pressure and temperature of the steam are: p 1.5 mpa and t 240°c (superheated state), respectively. then the temperature drops to t2= 100°c as the result of heat transfer to the surroundings. determine: a) quality of the steam at the end of the process, b) heat transfer with the surroundings. for: p1.5 mpa and t 240°c: enthalpy of superheated vapour is 2900 kj/kg, specific volume of superheated vapour is 0. 1483 m/kg, while for t 100°c: enthalpy of saturated liquid water is 419kj/kg, specific volume of saturated liquid water is 0.001043m/kg, enthalpy of saturated vapour is 2676 kj/kg, specific volume of saturated vapour is 1.672 m/kg and pressure is 0.1 mpa.
Answers: 3
image
Engineering, 04.07.2019 18:10, tjeffers90028
Refrigerant 134a enters an insulated compressor operating at steady state as saturated vapor at -26°c with a volumetric flow rate of 0.18 m3/s. refrigerant exits at 9 bar, 70°c. changes in kinetic and potential energy from inlet to exit can be ignored. determine the volumetric flow rate at the exit, in m3/s, and the compressor power, in kw.
Answers: 1
image
Engineering, 04.07.2019 18:10, Talos02
Burgers vector is generally parallel to the dislocation line. a)-true b)-false
Answers: 2
image
Engineering, 04.07.2019 18:20, CelesteN64
Most leaks in reciprocating air compressors can be detected and minimized by: (clo4) a)-detecting leakage areas using ultrasonic acoustic detector. b)-tightening joints and connections c)-replacing faulty equipment d)-all of the given options
Answers: 2
Do you know the correct answer?
Ear "popping" is an unpleasant phenomenon sometimes experienced when a change in pressure occurs, fo...

Questions in other subjects:

Konu
Mathematics, 12.04.2021 14:00