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Air is streaming past a horizontal air plane wing such that its speed in 120 m/s over the upper surface and 90 m/s at the lower surface. If the density of air 1.3 kg per `meter^3` and the wing is 10m long and has an average width of 2m, then the difference of the pressure on the two sides of the wing of:
A. |
4095.0 Pa |
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B. |
409.50 Pa |
C. |
40.950 Pa |
D. |
4.0950 Pa |