Ask question

Ask question

All categories

4 years ago

11

If the mean velocity adjacent to the top of a wing of 1.8 m chord is 40 m/s and that adjacent to the bottom of the wing is 31 m/

s when the wing moves through still air at 33.5 m/s, estimate the lift per meter of span.

1 answer:

Cloud [144]4 years ago

7 0

Answer:

lift per meter of span = 702 N/m

Explanation:

See attached pictures.

You might be interested in

The approximate rotation period of the Moon is: A. 1 day B. 1 week C. I month D. Infinite, since the Moon does not rotate, but k

My name is Ann [436]

Answer:

C. 1 month

Explanation:

The moon orbits around the earth once in a time of 27.322 days and it also takes about 27 days to orbit around its own axis. Due to this the moon is not seem to be spinning and it always seems still to observer who is observing from the Earth.

The moon takes about almost 1 month to make 1 revolution around the Earth . It also takes approximately the same time to make one rotation about its axis. This is why we always see the same face of the moon.

7 0

4 years ago

PLEASE HELLPPP ITS FIR A FINAL 3.Speed (v) abs wavelength ( λ ) and the frequency (f) of sound are related asRequired to answer.

Aliun [14]

Answer:

B. v = λ X f

<em><u>Hope this helps! </u></em>

8 0

3 years ago

What do automobile makers mean when they say their cars are more powerful than their competitors'cars

const2013 [10]

WHEN AUTO MOBILE MAKERS SAY THAT THEIR CARS ARE MORE POWERFUL IT MEANS AS IN TORQUE

8 0

3 years ago

PLEASE HELP <br> GREATLY APPRECIATED IF YOU DO

Yuliya22 [10]

Answer:

a. 38400j

Explanation:

p= mgh

2400×10×1.6

3 0

3 years ago

Hydraulic systems utilize Pascal's principle by transmitting pressure from one cylinder (called the primary) to another (called

Svetradugi [14.3K]

Answer:

The force to be applied on the primary piston is 140.63 N.

Explanation:

To solve this problem we apply the following formulas:

Pascal principle: F=P*A Formula (1)

F=Force applied to the piston

P: Pressure

A= Piston area

$A=\frac{\pi*d^{2} }{4}$ Formula (2)

d= piston diameter

Nomenclature:

Fp= Force on the primary piston

Fs= Force on the secondary piston

Ap= Primary piston area

As= Secondary piston area

W= car weight

Calculation of the force Fp necessary to support the weight of the car.

Pascal principle: Fp=P*Ap (Equation1)

In (Equation1) we know Ap and we don't know P.

Pressure calculation:

We apply Newton's first law for a balanced Secondary piston -automobile system

Newton's first law: ∑F=0

W-Fs=0

W=Fs

W=P*As

$P=\frac{W}{As}$

We replace $P=\frac{W}{As}$ in equation 1:

$Fp=\frac{W}{As} *Ap$

$Fp=\frac{W}{\frac{\pi*d_{s}^{2} }{4} } *\pi *\frac{d_{p^{2} } }{4}$

$Fp=W*\frac{d_{p}^{2} }{d_{s}^{2} }$

$Fp=2200*\frac{2,1^{2} }{26^{2} }$

$Fp=2200*\frac{4.41}{676}$

$Fp=14.35kg$

Calculation of Fp in Newtons (N):

$1kg=9.8N$

$Fp=14.35kg*\frac{9.8N}{kg}$

Fp=140.63N

3 0

3 years ago