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Neko [114]
2 years ago
12

HELP ASAP!!!!! ILL MARK YOU BRAINLIEST!

Physics
2 answers:
Julli [10]2 years ago
8 0
Hello! Sorry this is a little late!

The answer to your question would best be option C, y<span>es, because electric charges have electric fields surrounding them that allow them to exert forces on other objects without touching them.

I just took this test, and can 100% confirm this is the correct answer!

Hope this helps, and have a great day! :)</span>
valkas [14]2 years ago
3 0

Answer:

c. Yes, because electric charges have electric fields surrounding them that allow them to exert forces on other objects without touching them.

Explanation:

As we know by Coulomb's law the force of attraction or force of repulsion between two charged bodies is given by

F = \frac{kQ_1Q_2}{r^2}

now we know that

if two charges are of same sign then they will repel each other and if the two charges are of opposite sign then they must attract each other.

So here since two balloons are of negative charge so we can say that electric field on one balloon will repel the charge of other balloon.

So here both balloons will repel each other and correct answer will be

c. Yes, because electric charges have electric fields surrounding them that allow them to exert forces on other objects without touching them.

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The Sun appears at an angle of 48.4° above the horizontal as viewed by a dolphin swimming underwater. What angle does the sunlig
Luden [163]

Answer:

4.57 degree

Explanation:

As the dolphin is under water, so the angle is angle of refraction which is equal to 48.4 degree.

refractive index of water, n = 1.333

Let the angle of incidence which is the angle between the incident ray and the normal is i.

By use of Snell's law

n = \frac{Sin i}{Sin r}

1.333 = \frac{Sin i}{Sin 48.4}

Sin i = 1.333\times Sin 48.4 = 0.9968

i = 85.43 degree

Angle made with the horizon = 90 - 85.43 = 4.57 degree

6 0
3 years ago
2. What is the total effect of sound produced in an enclosed space called?
Igoryamba
I believe it is Acoustics, the real name for it would be like Reverberation. But go with Acoustics. :)
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2 years ago
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Answer:

A

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hope it helped a lot

pls mark brainliest with due respect .

6 0
2 years ago
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