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Kaylis [27]
3 years ago
15

A bird flew and landed on its swing. When the bird "hit" the swing, the swing began to move back and forth. What happened when t

he bird landed on the swing?
A. Energy was transferred from the air to the swing.
B. The swing and the bird gained energy.
C. The swing's energy and the bird's energy each stayed the same.
D. Some of the bird's energy was transferred to the swing.
Biology
1 answer:
Pavel [41]3 years ago
8 0

Answer:

D. Some of the bird's energy was transferred to the swing.

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Write the balanced equation for the reaction between potassium nitrate and sodium below.
Stolb23 [73]
KCl + AgNO
3

→

KNO
3
+
AgCl

Explanation:
Formulas for the compounds:
KCl
:
potassium chloride (reactant)
AgNO
3
:
silver nitrate (reactant)
KNO
3
:
potassium nitrate (product)
AgCl
:
silver chloride (product)
KCl + AgNO
3

→

KNO
3
+
AgCl

If the compounds are in aqueous solution, then their physical states could be added.
KCl(aq) + AgNO
3
(
aq
)

→

KNO
3
(
aq
)
+
AgCl(s)

3 0
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7. Which of the following accurately pairs the part of an atom to its charge?
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Answer:

B) electron - negative charge.

Explanation:

6 0
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the r group or side chain of the amino acid glutamic acid is hydrophilic. The R group of the amino acid valine is hydrophobic. w
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Answer:

You would expect to find glutamic acid on the fringes of the three-dimensional protein structure while valine would be found mostly inside the protein structure.

This is because hydrophilic molecules are ‘water-loving’ because they carry a charge and can, therefore, interact ‘positively’ with water by forming hydrogen bonds with the polar water molecules. Hydrophobic molecules on the other hand are water-hating. They carry no charge hence have no way of ‘positively’ interacting with the polar water molecules.

Remember the structure of the cell membrane too? The negatively-charged phosphate ends of the phospholipid bi-layer sandwich the non-polar fatty acid chains because they don't ‘like’ interacting with water. This applies to the same principle.

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brainly.com/question/2782651

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Messenger interact with the active site of a receptor by_________
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both of the models have enzymes that bind and the binding is covalent

Explanation:

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What is the distance from the peak of one wave to the peak of the next wave called?
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Answer:

Explanation:

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