Engineering, 20.01.2020 17:31 proxydayz
Consider an airplane flying with a velocity of 40 m/s in conditions identical to those at an altitude of 5 km in the standard atmosphere. at a point on the wing, the airflow velocity is 70 m/s. calculate the pressure at this point. assume inviscid, incompressible flow and the u. s. standard atmosphere is the relevant atmospheric model.
Answers: 1
Engineering, 04.07.2019 18:10
If a particle moves along a path such that r : (3 sin t) m and ? : 2t rad, where t is in seconds. what is the particle's acceleration in m/s in 4 seconds? a)- 16.43 b)- 16.29 c)- 15.21 d)- 13.79
Answers: 1
Engineering, 04.07.2019 18:10
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.
Answers: 1
Engineering, 04.07.2019 18:10
Which of the following controllers anticipates the future from the slope of errors over time? a)-proportional b)-on/off c)-integral d)-derivative.
Answers: 2
Engineering, 04.07.2019 18:20
Ahe-xe mixture containing a 0.75 mole fraction of helium is used for cooling electronics in an avionics application. at a temperature of 300 k and atmospheric pressure, calculate the mass fraction of helium and the mass density, molar concentration and molecular weight of the mixture. if the cooling capacity is 10 l, what is the mass of the coolant?
Answers: 3
Consider an airplane flying with a velocity of 40 m/s in conditions identical to those at an altitud...
Mathematics, 27.09.2021 07:20
Mathematics, 27.09.2021 07:20
Mathematics, 27.09.2021 07:20
Mathematics, 27.09.2021 07:20
Mathematics, 27.09.2021 07:20
Mathematics, 27.09.2021 07:20
Geography, 27.09.2021 07:20
Mathematics, 27.09.2021 07:20
Mathematics, 27.09.2021 07:20