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Physics, 21.06.2019 18:00
8. why do radio telescopes convert radio waves (analog signals) to electrical (digital) signals for analysis? (hint: what did the article say about the advantages of digital signals? )
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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?
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Physics, 22.06.2019 10:00
Your town is considering building a biodiesel power plant describe at least two advantages and two disadvantages
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Physics, 22.06.2019 14:40
What is the orbital period of a spacecraft in a low orbit near the surface of mars? the radius of mars is 3.4×106m.
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History, 27.11.2019 17:31
Business, 27.11.2019 17:31
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Biology, 27.11.2019 17:31
Biology, 27.11.2019 17:31
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History, 27.11.2019 17:31
History, 27.11.2019 17:31
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Mathematics, 27.11.2019 17:31
Social Studies, 27.11.2019 17:31
Social Studies, 27.11.2019 17:31