3 years ago

An eight-sided object submerged in water would have pressure applied in how many directions?

Physics

1 answer:

ludmilkaskok [199]3 years ago

8 0

A submarine :,) sowwy this was a joke

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iron (Fe), cobalt

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Average speed is the rate at which an object is moving at a given instant. True or False.

AleksandrR [38]

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True

Explanation:

Average speed is the rate at which an object is moving at a given instant in time.

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Answer:

100.11 m

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Given:

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Initial length of rod, $l=100 m$

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We know that,

$\alpha_{v}=3\alpha_{L}\\\alpha_{L}=\frac{\alpha_{v}}{3}\\\alpha_{L}=\frac{33\times10^{-6}}{3}=11\times10^{-6}$ /°C

Here, $\alpha_{L}$ is the coefficient of linear expansion.

Now, we know that,

Change in length (Δl) is given as,

$\Delta l=\alpha_L\times L\times\Delta T$

Plug in all the values and solve for $l$ .

This gives,

$\Delta l=11\times10^{-6}\times 100\times100\\\Delta l=0.11 \textrm{ m}$

Therefore, the length of rod after expansion is $L+\Delta l=100+0.11=100.11$ m.

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Can you add the picture

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