Physics, 29.10.2019 19:31 Kittylover65
Acyclist rides her bike 7 mi east, and then 2 mi north before taking a break. then she rides 5 mi east and then 3 mi north. what are the magnitude and direction of the cyclist’s resultant displacement?
magnitude: 10.9 mi; direction: 22.6° north of east
magnitude: 10.9 mi; direction: 67.4° north of east
magnitude: 13.0 mi; direction: 67.4° north of east
magnitude: 13.0 mi; direction: 22.6° north of east
Answers: 2
Physics, 22.06.2019 07:50
The ratio of lift to drag l/d for a wing or airfoil is an important aerodynamic parameter, indeed, it is a direct measure of the aerodynamic efficiency of the wing. if a wing is pitched through a range of angle of attack, l/d first increases, then goes through a maximum, and then decreases. consider an infinite wing with an naca 2412 airfoil. estimate the maximum value of l/d. assume that the reynolds number is 9x10^6.
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Physics, 22.06.2019 18:00
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Physics, 22.06.2019 19:30
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Answers: 3
Physics, 22.06.2019 22:00
On mars a rock falls an unknown vertical distance from a resting position and lands in a crater. if it takes the rock 2.5 seconds to fall, how high is the cliff the rock fell from? mars' surface gravity is 3.8 m/s2. a. 9.5 m b. 11.9 m c. 15.2 m d. 23.8 m
Answers: 1
Acyclist rides her bike 7 mi east, and then 2 mi north before taking a break. then she rides 5 mi ea...
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