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Gnesinka [82]
3 years ago
10

I suck in science so pls help thx

Chemistry
1 answer:
CaHeK987 [17]3 years ago
7 0

Answer:

Sometimes it is not an increase in force that is desired, but an increase in  

distance or speed.  Take a baseball bat as an example.  A bat is a class 3  

lever, meaning the effort is in the middle.  This means that it has a  

mechanical advantage of less than one.  However, when the bat is swung,  

the end of the bat is travelling at a much higher speed than the location at  

which the batter is holding it.  This allows the ball to leave the bat at a  

much higher speed than it would with a class one or two lever.

Explanation:

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Define thermal conductor
user100 [1]

Answer: A thermal conductor is a material that allows energy in the form of heat, to be transferred within the material, without any movement of the material itself.

Explanation:

4 0
4 years ago
An aluminum atom possesses three valence electrons. Which is most likely to occur for an aluminum atom to obtain a complete vale
irina1246 [14]

The atom will lose three valence electrons.

<h3>What is meant by valence electron ?</h3>
  • A valence electron is an electron that is part of an atom's outer shell in chemistry and physics. If the outer shell is open, the valence electron can take part in the creation of a chemical bond.
  • Each atom in the bond contributes one valence electron to create a shared pair in a single covalent bond.
  • The chemical properties of an element, such as its valence—whether it can bond with other elements and, if so, how readily and with how many—can be affected by the presence of valence electrons. In this way, the electronic configuration of an element greatly influences its reactivity.
  • A valence electron for a main-group element can only be found in the outermost electron shell; for a transition metal, it can also be found in an inner shell.

Learn more about valence electron refer to :

brainly.com/question/371590

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3 0
1 year ago
Polypeptides and proteins must fold properly to be functional. Hydrogen bonds between the oxygen and nitrogen atoms of the pepti
Lubov Fominskaja [6]

Answer:

Secondary structure

Explanation:

Stricture of proteins can be categories into 4

Primary structure, secondary structure, tertiary structure and quaternary structure.

Primary structure are polypeptide chains. The polypeptide chains are formed by amino acids held together by peptide bonds.

Secondary structure refers to the folding of polypeptides chains. Two most common secondary structures are alpha helix and beta pleated structure. These folding occurs because of hydrogen bonding between the oxygen of the carbonyl of one amino acid and the hydrogen of another amino acid.

Therefore, hydrogen bonding is crucial for secondary structure of the protein.

4 0
4 years ago
Does anyone know this awnser please help
Vadim26 [7]

the answer is A bruddah.

5 0
3 years ago
4 As a boulder rolls from the top of a hill to the bottom, how do its potential and kinetic energy change? *
user100 [1]

Answer:

c. Potential decreases and kinetic increases.

Explanation:

As the boulder is rolling down the hill, potential energy decreases as kinetic energy increases.

Please Brainliest me

4 0
3 years ago
Read 2 more answers
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