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3 years ago

8

I’m having trouble figuring out how to study for my science test , it’s based off of everything we’ve learned but I’m afraid the

re’s some things I misunderstood during the year that will effect me on the test , and suggestions?!?!

1 answer:

Bumek [7]3 years ago

3 0

Study be comftoable try to be organized a lott and have fun

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Answer:

Total internal reflection is going on. The refractive index of water is about 1.3, so sin 90/sin r=1/sinr=1.3. So the fish can only see objects outside the water within about 50 degrees of the vertical

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3 years ago

Generally, what will happen to most liquids if the temperature is increased?

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A hair dryer is basically a duct of constant diameter in which a few layers of electric resistors are placed. A small fan pulls

Mars2501 [29]

Answer:

Therefore % increase in velocity is 18.23 %

Explanation:

we use the equality of mass flow rate and the areas

$m_1 = m_2\\p_1v_1 = p_2v_2\\p_1A_1v_1 = p_2A_2v_2\\v_2 = \frac{p_1}{p_2} v_1$

The percentage increase in velocity is

Δ v% = $\frac{v_2 - v_1}{v_1} \\$ 100%

= $\frac{p_1}{p_2} v_1 - v_1$ .100%

= $\frac{\frac{1.2}{1.015} - 1}{1}$ . 100%

= Therefore % increase in velocity is 18.23 %

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3 years ago

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Answer:

2 i think

Explanation:

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3 years ago

4. All electromagnetic radiation moves at the speed of ________________, which is _________________ m/s.

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Answer:

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