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lawyer [7]
4 years ago
10

Fast! Will mark brainliest! Why do xylophone bars have different lengths? If you could give me a good description of this it wou

ld be best :)
Chemistry
2 answers:
max2010maxim [7]4 years ago
7 0
The reason is that the smaller ones make a high note depending on the size. The larger ones will make a deeper, lower notes.
Aliun [14]4 years ago
4 0
Xylophone bars: Frequency and length.54 (6), 325-
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How many hydrogen bonds will be found within an alpha helix that is 18 amino acids long?.
LekaFEV [45]

An alpha helix which is 18 amino acids long will have 12 hydrogen bonds.

<h3>What is alpha helix (α-helix) ?</h3>

The alpha helix (α-helix) is a common in the secondary structure of proteins and is a right hand-helix conformation in which every backbone N−H group hydrogen bonds to the backbone C=O. group of the amino acid located four residues earlier along the protein sequence.

The alpha helix is stabilized by hydrogen bonds (shown as dashed lines) from the carbonyl oxygen of one amino acid to the amino group of a second amino acid.

Because the amino acids connected by each hydrogen bond are four apart in the primary sequence, these main chain hydrogen bonds are called "n to n+4.

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5 0
2 years ago
4. If the earth were to heat up by 3 degrees, approximately how much would the sea level rise?
Ksju [112]

The sea level would rise by some 50 meters.

Explanation:

If the earth's temperature increases by 3 degrees the north and south pole would experience the ice melt at high speed.

The life will get difficult on the plains.

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The sea level would rise by 50 meters. The increased sea level will cause depletion of habitat from plants and animals.

The floods will occur, land erosion, soil for agriculture land will get contaminated with the salt.

8 0
3 years ago
A gas at 325 k has a volume of 4.0 L. If the gas’s volume changes to 2.0 L at constant pressure, what will be the new temperatur
inessss [21]
4/325 = 2/unknown temperature
unknown temperature= 2/(4/325)=162.5k
8 0
4 years ago
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In the periodic table, the elements are organized into groups based on
Pani-rosa [81]
<span>In the periodic table, the elements are organized into groups based on putting together elements with similar properties. For instance, elements in each group have the same number of valence electrons, which makes them form similar bonds. Additionally, elements in the same similar characteristics, such as malleability and magnetism.</span>
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Do biotic factors contain cells
Keith_Richards [23]
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3 years ago
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