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 10:30
Awoman holds a book by placing it between her hands such that she presses at right angles to the front and back covers. the book has a mass of m = 1.8 kg and the coefficient of static friction between her hand and the book is μs = 0.67. no attempt 50% part (a) what is the weight of the book, fgb in newtons?
Answers: 3
Physics, 22.06.2019 15:30
Two pans of a balance are 24.1 cm apart. the fulcrum of the balance has been shifted 1.33 cm away from the center by a dishonest shopkeeper. by what percentage is the true weight of the goods being marked up by the shopkeeper? assume the balance has negligible mass. answer in units of %.
Answers: 1
What is the power of a 12v, 50a light?...
Advanced Placement (AP), 01.08.2021 14:00
English, 01.08.2021 14:00
English, 01.08.2021 14:00
Mathematics, 01.08.2021 14:00
Mathematics, 01.08.2021 14:00
History, 01.08.2021 14:00
English, 01.08.2021 14:00
History, 01.08.2021 14:00
Physics, 01.08.2021 14:00
Mathematics, 01.08.2021 14:00
Arts, 01.08.2021 14:00
Health, 01.08.2021 14:00
Mathematics, 01.08.2021 14:00