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2 years ago

Choose the items that help to fully describe voltage.

Physics

1 answer:

Zina [86]2 years ago

8 0

Answer:

the easy way to describe this is to use a light as an example.

Explanation:

Voltage is pretty much the loop used to help use a lightbulb to emit light. Without voltage, we would be unable to use lightbulbs. This applies to much more than a lightbulb, but it's the easiest way to describe how voltage works.

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The figure shows a water-filled syringe with a 4.0-cm-long needle. What is the gauge pressure of the water at the point P, where

mars1129 [50]

Answer:

Pressure at P point is given as

$P_p = 1.042 \times 10^5 Pa$

Explanation:

As we know by poiseuille's equation of viscous flow of liquid through cylindrical pipe

$Q = \frac{\Delta P \pi r^4}{8\eta L}$

here we know that

L = 4 cm

$\eta = 1 \times 10^{-3} Pa s$

r = 1 mm

Q = flow rate

$\pi r^2 v = \frac{\Delta P \pi r^4}{8\eta L}$

$v = \frac{\Delta P r^2}{8 \eta L}$

$10 = \frac{\Delta P (10^{-3})^2}{8(1 \times 10^[-3})(0.04)}$

$3.2 \times 10^{-3} = \Delta P (10^{-6})$

$\Delta P = 3.2 \times 10^3 Pa$

now we have

$P_p - P_{atm} = 3.2 \times 10^3$

$P_p = 1.01 \times 10^5 + 3.2 \times 10^3$

$P_p = 1.042 \times 10^5 Pa$

8 0

3 years ago

Who knows how to do this?

stepladder [879]

I do, and my brother and son-in-law can also solve it.

Note: V1, V2, V3, I1, I2, and I3 are not labeled in the picture, so those can't be solved for.

7 0

3 years ago

A leaf fell from a tree branch. The path it followed is shown in the diagram below.

prisoha [69]

The leaf fell at the crooked path instead of straight down because air currents and gravity applied changing and unbalanced forces to the leaf.

<h3>What is an air current?</h3>

An air current is defined as the changes in atmospheric pressure that causes the movement of air from one area to another.

When a leaf is detached naturally from the tree, it won't fall straight down to the floor but will fall a distance away from the tree due to the action of air current and some unbalanced forces.

Learn more about leaf here:

brainly.com/question/24234175

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3 years ago

For a certain interval of time, an object is acted on by a constant non-zero force. Which of the following statements is true fo

aleksklad [387]

For a certain interval of time, an object is acted on by a constant non-zero force. For this interval of time . . . . .

A. The object is at rest. No. From F=ma, if F is not zero, the object can't remain at rest.

B. The object's velocity changes. Yes. From F=ma, if F is not zero, there must be acceleration.

C. The object's velocity can only increase. No. It might decrease.

D. The object is moving with constant velocity. No. From F=ma, if F is not zero, there must be acceleration.

E. The object is accelerating. Yes. From F=ma, if F is not zero, there must be acceleration.

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4 years ago

Read 2 more answers

Derive velocity-time relation from velocity-time graph

Brrunno [24]

Explanation:

hope this helps you

.....,.......

7 0

3 years ago