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Aleonysh [2.5K]
3 years ago
6

What does buoyancy depend on?

Physics
2 answers:
natulia [17]3 years ago
7 0
The answer to this is d
Pie3 years ago
5 0

Answer:

D.  the density of the surrounding air and the density of water.

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Our sun is a low mass main sequence star at the middle of its life cycle. Explain how the appearance of the sun will change as i
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<h2><u>Answer:</u></h2>

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3 years ago
. An object has a position given by ~r(t) = [3.0 m − (4.00 m/s)t]ˆı + [6.0 m − (8.00 m/s2 )t 2 ]ˆ , where all quantities are in
kupik [55]

Answer:

(c) 16 m/s²

Explanation:

The position is r(t) = [3.0 \text{ m} - (4.00 \text{ m/s})t]\hat{i} + [6.0 \text{m} - (8.00 \text{ m/s}^2 )t^2 ]\hat{j}.

The velocity is the first time-derivative of <em>r(t).</em>

<em />v(t) = \dfrac{d}{dt}r(t) = -4.00\,\hat{i} -16t\,\hat{j}<em />

The acceleration is the first time-derivative of the velocity.

a(t) = \dfrac{d}{dt} v(t) = -16\hat{j}

Since <em>a(t)</em> does not have the variable <em>t</em>, it is constant. Hence, at any time,

a = -16\hat{j}

Its magnitude is 16 m/s².

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The diagrams show objects' gravitational pull toward each
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