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mylen [45]
2 years ago
10

Rahul sees a flock of birds. He watches as the flying birds land in neat little rows on several power lines. Which change of sta

te does the motion of the birds most closely model?
Physics
2 answers:
Ksju [112]2 years ago
7 0

Answer:

Deposition

Explanation:

here we know that flock of birds are flying in the sky initially and there is no finite position of all birds at a given time instant.

Now After some time all birds start to land on a neat little rows of power line so here the position of bird will be fixed and they all are at finite fixed position now.

So this finite fixed position of birds shows the phenomenon of accumulation at a fixed point

so this change in state of motion of the birds will show the deposition phenomenon of the birds at the power line

Murljashka [212]2 years ago
3 0
The change of state does the motion of the birds most closely model is deposition. Thank you for posting your question here at brainly. I hope the answer will help you. Feel free to ask more questions.
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A 17 g audio compact disk has a diameter of 12 cm. The disk spins under a laser that reads encoded data. The first track to be r
sladkih [1.3K]

Answer:

0.00066518 Nm

Explanation:

v = Velocity = 1.2 m/s

r = Distance to head = 2.3 cm

\omega_f = Final angular velocity

\omega_i = Initial angular velocity = 0

\alpha = Angular acceleration

t = Time taken = 2.4 s

Angular speed is given by

\omega=\dfrac{v}{r}\\\Rightarrow \omega=\dfrac{1.2}{0.023}\\\Rightarrow \omega=52.17391\ rad/s

From equation of rotational motion

\omega_f=\omega_i+\alpha t\\\Rightarrow \alpha=\frac{\omega_f-\omega_i}{t}\\\Rightarrow \alpha=\frac{52.17391-0}{2.4}\\\Rightarrow \alpha=21.73912\ rad/s^2

Torque

\tau=I\alpha\\\Rightarrow \tau=\dfrac{1}{2}mR^2\alpha\\\Rightarrow \tau=\dfrac{1}{2}0.017\times 0.06^2\times 21.73912\\\Rightarrow \tau=0.00066518\ Nm

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6 0
2 years ago
You know that you sound better when you sing in the shower. This has to do with the amplification of frequencies that correspond
luda_lava [24]

Answer:

a) L = 0.75m   f₁ = 113.33 Hz , f₃ = 340 Hz, b) L=1.50m   f₁ = 56.67 Hz ,  f₃ = 170 Hz

Explanation:

This resonant system can be simulated by a system with a closed end, the tile wall and an open end where it is being sung

In this configuration we have a node at the closed end and a belly at the open end whereby the wavelength

With 1  node         λ₁ = 4 L

With 2 nodes      λ₂ = 4L / 3

With 3 nodes       λ₃ = 4L / 5

The general term would be      λ_n= 4L / n         n = 1, 3, 5, ((2n + 1)

The speed of sound is

         v = λ f

         f = v / λ

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Let's consider each length independently

L = 0.75 m

        f₁ = 340 1/4 0.75 = 113.33 n

         f₁ = 113.33 Hz

        f₃ = 113.33   3

       f₃ = 340 Hz

L = 1.5 m

       f₁ = 340 n / 4 1.5 = 56.67 n

       f₁ = 56.67 Hz

       f₃ = 56.67 3

       f₃ = 170 Hz

8 0
2 years ago
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the correct answer is 27 hours per week :) hope this helps


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2 years ago
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As a blacksmith heats a piece of iron, the iron glows red, then yellow, then white. The iron provides a demonstration of which p
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Answer:

ULTIMATE CORRECT ANSWER

collaboration and communication

Explanation:

5 0
2 years ago
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