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svlad2 [7]
2 years ago
10

Short Answer Questions:

Physics
1 answer:
Otrada [13]2 years ago
4 0

According to Archimede's principle, a physical object experiences an upthrust due to a difference in pressure between upper and lower  surfaces.

<h3>What is an upthrust?</h3>

An upthrust is also referred to as buoyancy and it can be defined as an upward force which is exerted by a fluid (liquid or gas), so as to oppose the weight of a partially or fully immersed physical object that is floating in it.

Based on scientific information, a physical object experiences an upthrust when it is immersed in a fluid due to a difference in height and pressure between upper (top) and lower (bottom) surfaces.

According to Archimede's principle, there is a higher pressure at the bottom of the physical object due to height, and a lower pressure at the top of the physical object.

Read more on upthrust here: brainly.com/question/24389514

#SPJ1

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JulsSmile [24]
<span>A cumulus cloud is puffy and white.
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A flare is shot from a snowmobile with an initial velocity of 4.3 m/s at 90*, while the snowmobile is moving at 8.5 m/s at 0.0*.
Sedaia [141]

The driver is tooling along in his snowmobile, pointed north,
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He's carrying the flares with him, so the flares are also moving north
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When he fires the flare straight up, it has a vertical velocity of 4.3 m/s
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The magnitude of the net velocity is √(4.3² + 8.5²) .
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2 years ago
What kind of lens is there in our eyes? where does it form the image of an object?​
Goshia [24]

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convex lens

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Which of the following statements are true?
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Answer:

1) A time-varying magnetic field will produce an electric field.

4) A time-varying electric field will produce a magnetic field.

Explanation:

1) A time-varying magnetic field will produce an electric field.

TRUE

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E = \frac{r}{2}\frac{dB}{dt}

2) Time-varying electric and magnetic fields can propagate through space only if there is no matter in their path.

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4) A time-varying electric field will produce a magnetic field.

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Time varying electric field will produce magnetic field given as

B = \frac{\mu_o\epsilon_o A}{2r}\frac{dE}{dt}

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3 years ago
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