Apparent depth is dangerous for swimmers because
<span> When you look vertically downwards into a </span>swimming<span> pool full of water the bottom seems closer than it. </span>If the pool is really deep and it doesn't look deep to you that's not good cuz if you don't know how to swim in deep water you might drown.
Hope this helps ;)
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Ultrasound is a frequency where higher than that which is audible. So the answer is "high frequency".
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Answer: if the pressure in the container is doubled, then the temperature will double too.
Justification:
You can rely on Gay-Lussac's law for ideal gases to answer the question.
According to that law, the pressure and temperature of a fixed amount of gas in a closed rigid container (constant volume) varie in direct proportion.
Mathematically, you can write in this way:
P/T = k
P₁ / T₁ = P₂ / T₂
That means, that if the pressure in the container is doubled, then the temperature will double too.
You can see that mathematically:
P₂ = 2 P₁
T₂ = (T₁ / P₁)(P₂) = (T₁ / P₁) (2 P₁) = 2 T₁
Explanation:
The Dalton's atomic theory was proposed by John Dalton in the 19th century through his experiment on gases. Some of his propositions are;
- Atoms are the smallest indivisible particles of matter and they can neither be created nor destroyed.
- Elements have identical atoms that are different from atoms of other elements.
- Atoms vary in size and mass for different elements and this distinguishes them from atoms of other elements.
- Whole number combination of atoms results in the formation of compounds.
- Compounds are formed in chemical reactions when atoms recombine with one another.
You can compare your options with any of the statements above.
Learn more:
Dalton's atomic theory brainly.com/question/1979129
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