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il63 [147K]
3 years ago
14

If the velocity of an object is doubled, its kinetic energy is ______.. a.. doubled. c.. quadrupled. b.. decreased. d.. unaffect

ed. .
Biology
1 answer:
strojnjashka [21]3 years ago
7 0
C. Quadrupled.

Kinetic energy scales with the square of velocity.
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The ant and the acacia have a
Sidana [21]

Answer:

Mutualistic means that both organisms benefit.

Explanation:

The acacia tree provides shelter and food to the ants, while the ants protect the tree from other animals.

3 0
3 years ago
During exercise, epinephrine and norepinephrine are released from the adrenal medulla. Epinephrine and norepinephrine have the s
matrenka [14]

Answer and explanation:

Epinephrine and norepinephrine are two hormones that are released from the adrenal medulla when the body is under stress (like during exercise, for example) as a part of the sympathetic response.

These hormones have many functions and they all work together to prepare the individual for a fight or flight response -<em> like increasing heart rate and producing bronchodilatation</em>. One of these functions is the rise of glucose levels in blood which is important for this substance to reach several tissues, like the skeletal muscle. The skeletal muscle will make use of this glucose to produce ATP and generate the required energy for muscle contraction through a process called glycolysis, which is key for the fight or flight response mentioned above.

When we exercise, glucose levels rise thanks to these hormones so the skeletal muscle can have enough energy to contract and move as we want. If the exercise is too intense or prolongued, glucose levels will drop and other fuels will be needed to sustain this activity, like stored glycogen and fat.

7 0
3 years ago
Match each decimal number to its equivalent in scientific notation.
sdas [7]
<h3>Answer</h3>

15 = 1.5 × 10^1

1.5 =1.5 × 10^0

0.015 = 1.5 × 10^-2

0.15 = 1.5 × 10^-1

150 = 1.5 × 10^2

<h3>How to convert to scientific notation</h3>
  1. Move the decimal point in your number until there is only one non-zero digit to the left of the decimal point. Let says it is X
  2. Count how many places you moved the decimal point. Let say it is Y.
  3. If you moved the decimal to the left b is positive.
  4. If you moved the decimal to the right b is negative.
  5. If you did not need to move the decimal b = 0.
  6. Write your scientific notation number as X x 10^Y.
4 0
3 years ago
Which activity involves using fossil fuels directly or inderectly
Advocard [28]

B. Using Crayons To Color Is Using Fossil Fuels.

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3 years ago
Describe characteristics of a biological concept process or model represented visually.
vesna_86 [32]

Structure of Water and Hydrogen Bonding

  • living systems depend on water and its polarity as well as hydrogen bonds
  • hydrogen bonds result in the cohesion: ability for water molecules to stick together through hydrogen bonds, adhesion: ability for polar part of water to stick to other polar surfaces and surface tension: water's attraction to each other in bonds rather than air so have tension on surface
  • cohesion of water is the Attraction between molecules of the same substance.
  • Hydrogen bonds between the oxygen of one water molecule and a hydrogen of another water molecule.
  • Adhesion of water is the property of water to attract with other substance.

To know more about  Hydrogen Bonding   visit : brainly.com/question/10904296

#SPJ4

7 0
1 year ago
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