1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
EastWind [94]
4 years ago
10

Which statement is true about an airplane wing during flight?

Physics
2 answers:
azamat4 years ago
5 0

c. air above the wing travels faster than air below the wing.

allochka39001 [22]4 years ago
3 0
C. air above the wing travels faster than air below the wing.
You might be interested in
how do i.... Find the angle between each pair of vectors below. (1 point each) a. a = 2x + 3y a = 4x + 2y
Shalnov [3]

Recall that the dot product between two vectors \mathbf a and \mathbf b satisfies

\mathbf a\cdot\mathbf b=\|\mathbf a\|\|\mathbf b\|\cos\theta

where \|\mathbf x\| denotes the norm of a vector \mathbf x, and \theta is the angle between the two vectors.

So if \mathbf a=(2,3) and \mathbf b=(4,2), then

(2,3)\cdot(4,2)=\|(2,3)\|\|(4,2)\|\cos\theta

\implies2\cdot4+3\cdot2=\sqrt{2^2+3^2}\sqrt{4^2+2^2}\cos\theta

\implies\cos\theta=\dfrac{14}{\sqrt{13}\sqrt{20}}

\implies\theta\approx29.7^\circ

6 0
3 years ago
PLEASE HELP ME!!!<br><br> Ice is less dense than water because of which bond?<br><br> THANK YOU
Sergio039 [100]
Okay so hydrogen bonds..
5 0
3 years ago
Read 2 more answers
Unless indicated otherwise, assume the speed of sound in air to be v = 344 m/s. A pipe closed at both ends can have standing wav
uranmaximum [27]

Answer:

68.8 Hz

137.6 Hz, 206.4 Hz

Explanation:

L = Length of tube = 2.5 m

v = Velocity of sound in air = 344 m/s

Distance between nodes is given by

L=\dfrac{\lambda}{2}+m\dfrac{\lambda}{2}\\\Rightarrow \dfrac{\lambda(n+1)}{2}=L\\\Rightarrow \lambda=\dfrac{2L}{n+1}

Where n = 0, 1, 2, 3, ...

Making n+1 = n

\lambda=\dfrac{2L}{n}

where n = 1, 2, 3 .....

For fundamental frequency n = 1

\lambda=\dfrac{2\times 2.5}{1}\\\Rightarrow \lambda=5\ m

Frequency is given by

f=\dfrac{v}{\lambda}\\\Rightarrow f=\dfrac{344}{5}\\\Rightarrow f=68.8\ Hz

The fundamental frequency is 68.8 Hz

First overtone

2f=2\times 68.8=137.6\ Hz

Second overtone

3f=3\times 68.8=206.4\ Hz

The overtones are 137.6 Hz, 206.4 Hz

4 0
4 years ago
A long solenoid with 8.22 turns/cm and a radius of 7.00 cm carries a current of 19.4 mA. A current of 3.59 A exists in a straigh
daser333 [38]

Answer:

a. 3.039cm

b.magnetic field is B=2.958\times10^{-5}T

Explanation:

Direction of the solenoid magnetic field is along the axis of the solenoid. and magnetic field due to the wire perpendicular to that due to the solenoid.. Magnetic field at r is given by:

\overrightarrow B = \overrightarrow B_s+ \overrightarrow B_w,\ \ \ \ \  \overrightarrow B_s\perp \overrightarrow B_w

Angle of net magnetic field from axial direction is given by:

tan\  \theta=\frac{B_w}{B_s},

Field due to solenoid:

B_s=\mu_onI_s,  \ \ \ \ n=(8.22 t/cm)(100cm/m)=822turn/m

Field due to wire:

B_w=\frac{\mu_oI_w}{2\pi r}

Therefore, r:

tan\  \theta=\frac{B_w}{B_s}\\\\=\frac{\mu_oI_w}{2\pi r(\mu_o nI_s)}\\\\r=\frac{I_w}{2\pi  nI_stan \ \theta}\\\\r=\frac{3.59A}{2\pi\times822\times19.4\times10^{-3}A \ tan 49.7\textdegree}\\\\r=3.039cm

Hence, the radial distance is 3.039cm

b.The magnetic field strength is given by:

B=\sqrt{B_w^2+B_s^2}\\\\tan 49.7\textdegree=\frac{B_w}{B_s}\\\\1.179=\frac{B_w}{B_s}\\\\B_w=1.179B_s\\\\B=\sqrt{(4\pi\times10^{-7}T.m/A\times 822\times19.4\times10^{3}A)+1.179(4\pi\times10^{-7}T.m/A\times 822\times19.4\times10^{-3}A)}\\\\B=2.958\times10^{-5}T

Hence, the magnetic field is B=2.958\times10^{-5}T

7 0
4 years ago
a block sliding on the ground where uk= 0.193 experiences a 14.7N friction force. what is the mass of the block in kg
Maurinko [17]

Answer:

F = ma

14.7N = m(0.193)

m = 76.3 kg

3 0
1 year ago
Other questions:
  • The message refers to which of the following?
    10·1 answer
  • How does the sun cause wind?
    8·1 answer
  • How do temperature, humidity, and pressure vary within air mass.
    10·2 answers
  • List the steps of creating a virtual image with a plane mirror
    9·1 answer
  • A student drops a water balloon from tall building trying to hit her roommate on the ground below (and misses). After dropping t
    13·1 answer
  • You whirl a stone in a horizontal circle in such a way that the stone is in uniform circular motion. Which of the following is t
    7·1 answer
  • Question 4 of 5
    12·1 answer
  • Which situation illustrates Newton's first law?
    11·1 answer
  • Dharr man says dark always turns to light, when does this change in excellency occur
    14·1 answer
  • A truck is carrying a refrigerator as shown in the figure. The height of the refrigerator is 158.0 cm, the width is 60.0 cm. The
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!