Pls help i dont know this wait the first one should not be there oops
...
Answers: 1
Physics, 21.06.2019 22:00
In a wind tunnel the speed changes as the cross sectional area of the tunnel changes. if the speed in a 6' x 6' square test section is 100 mph, what was the speed upstream of the test section where the tunnel measured 20' x 20'? use conservation of mass and assume incompressible flow. conservation of mass requires that as the flow moves through a path or a duct the product of the density, velocity and cross sectional area must remain constant; i.e., that ova-constant. a model is being tested in a wind tunnel at a speed of 100 mph if the flow in the test section is at sea level standard conditions, what is the pressure at the model's stagnation point? (a) the tunnel speed is being measured by a pitot-static tube connected to a u- tube manometer. what is the reading on that manometer in inches of water? (b) at one point on the model a pressure of 2058 psf is measured. what is the local airspeed at that point?
Answers: 2
Physics, 22.06.2019 02:40
What happens when chlorine reacts with bromine? a. electrons move from the chlorine atoms to the bromine atoms. b. electrons move from the bromine atoms to the chlorine atoms. c. electrons are shared between the chlorine atoms and the bromine atoms. d. electrons become delocalized among the atoms.
Answers: 2
Physics, 22.06.2019 05:00
He viscosities of several liquids are being compared. all the liquids are poured down a slope with equal path lengths. the liquid with the highest viscosity will
Answers: 3
Chemistry, 01.10.2019 13:10
English, 01.10.2019 13:10
Computers and Technology, 01.10.2019 13:10
History, 01.10.2019 13:10
Biology, 01.10.2019 13:10
Biology, 01.10.2019 13:10
English, 01.10.2019 13:10
English, 01.10.2019 13:10
Mathematics, 01.10.2019 13:10
Mathematics, 01.10.2019 13:10
History, 01.10.2019 13:10
Mathematics, 01.10.2019 13:10