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kow [346]
3 years ago
13

The same fluid flows through four different branching pipes. It enters each pipe from the left with the same speed, v0, and flow

s to the right. Assume that the fluid fills the pipes everywhere completely. You can also assume that all of these pipes are in the horizontal plane and that you are looking at them from above, so that there are no differences in height anywhere among the pipe branches. Finally, you can ignore viscosity. Which fluid speed is the largest?
All four speeds are the same.
a. v1
b. v4
c. v2
d. v3
Physics
1 answer:
Anvisha [2.4K]3 years ago
6 0

Answer:

The correct option is A.

Explanation:

Following the equation of continuum, AV remains constant.

Case a

(3A)(V0) = AV1 + AV1 + AV1

3AV0 = 3AV1

V1 = V0

Case b

(A)(V0) = (A/3)V2 + (A/3)V2 + (A/3)V2 + (A/3)V2​​​​​​​

AV0 = 4V2/3

V2 = 3/4V0

Case c

(A/2)(V0) = AV3 + AV3 + AV3

AV0/2 = 3AV3

V3 = V0/6

Case d

(3A)(V0) = 2AV4 + 2AV4

3AV0 = 4AV4

V4 = 3V0/4

Comparing all the flow speeds, V1 is the largest.

Thus, the correct option is A.

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The curved movement of air or water is the result of which of these?
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B. the rotation of Earth on its axis

<h3><u>Explanation;</u></h3>
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When two identical resistors are connected in series across ideal battery, total power dissipated by them is P. Now both are con
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PLEASE HELP. GRAVITY QUESTION, WRITTEN RESPONSE.
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1) Forces acting on your body: force of gravity and normal reaction

2) Due to Newton's second law, N = mg

Explanation:

1)

When you sit on the computer, there are only two forces acting on you:

  • The force of gravity, acting downward, of magnitude W=mg, where m is your mass and g=9.8 m/s^2 is the acceleration due to gravity, downward
  • The normal reaction exerted by the chair on you, N, acting upward

Your body is in equilibrium (it doesn't move), this means that the two forces balance each other, therefore:

N-mg=0\\N=mg

2)

We can now apply Newton's second law of motion to this situation; this law states that the net force acting on a body is equal to the product between its mass and its acceleration. Mathematically,

\sum F = ma

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m is the mass

a is the acceleration

In this situation, the net force is

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However, we observe that your body is at rest; therefore, the acceleration is zero:

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And therefore,

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