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Maurinko [17]
3 years ago
15

Can yall help me please?? I can't get it wrong!

Physics
2 answers:
Scrat [10]3 years ago
7 0

Answer:

The answer should be C

Explanation:

Mrac [35]3 years ago
6 0
An area with an area with low air pressure
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A yo-yo is made of two solid cylindrical disks, each of mass 0.055 kg and diameter 0.070 m , joined by a (concentric) thin solid
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How does the strong nuclear force hold the nucleus of an atom together?
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Examine the scenario.
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A Boeing 737 airliner has a mass of 20,000 kg and the total area of both wings (top or bottom) is 100 m2. What is the pressure d
kvv77 [185]

Answer:

The correct option is A = 1960 N/m²

Explanation:

Given that,

Mass m= 20,000kg

Area A = 100m²

Pressure different between top and bottom

Assume the plane has reached a cruising altitude and is not changing elevation. Then sum the forces in the vertical direction is given as

∑Fy = Wp + FL = 0

where

Wp = is the weight of the plane, and

FL is the lift pushing up on the plane.

Let solve for FL since the mass of the plane is given:

Wp + FL = 0

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Let Equate FL to the pressure differential multiplied by the area of the wings:

FL = (Pb −Pt)⋅A

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FL = ∆P • A

∆P = FL/A

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The pressure difference between the top and bottom surface of each wing when the airplane is in flight at a constant altitude is approximately 1960 N/m². Option A is correct

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