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liraira [26]
2 years ago
12

What affects the volume and pitch in sound waves? *please help!*​

Biology
1 answer:
Leokris [45]2 years ago
5 0

Answer:

the volume increases in amplitude of the sound wave. Pitch is seen as a change in the frequency

Explanation:

is this what you were asking for?

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A 0.2 M solution of NaCl contains ________ g of NaCl in 1 l of ________.
Maksim231197 [3]

Answer:

11.7 g in 1 L of water.

Explanation:

Molarity (M) or Molar concentration is a measure used in chemistry for solutes in a solution.

It is defined as mol/ L (number of moles per litre).

0,2 M means we have 0,2 mol/ L

In order to know how many grams this means we need to look up the molecular weight of the solute. In this case NaCl: 58.443 g/mol

\frac{1 mol NaCl}{58.443 g} = \frac{0.2 mol}{X g}

X= \frac{(0.2 mol x 58.433 g}{1 mol}

X= 11.69 g

The solution has 11.69 g of NaCl in 1 L of water since its an adequate polar solvent for NaCl dissolution.

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3 years ago
The karyotype for trisomy 21 illustrates an example of a genetic mutation caused by A) insertion. B) inversion. C) crossing over
Katyanochek1 [597]

Trisomy 21, as illustrated by the karyotype, is caused by nondisjunction. This occurs when chromosomes do not separate properly during meiosis.

Answer is D) nondisjunction

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3 years ago
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What is the entire group of accounts maintained by a company called?
sergeinik [125]

Answer:

it is called a ledgar

Explanation:

Dont really know how to explain but hopefully it's right

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Which do you think is most important about sleep? Write 2-3 sentences to explain
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Answer:Sleep helps keep your heart healthy

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Explanation:

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