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DedPeter [7]
3 years ago
14

20 POINTS

Biology
1 answer:
erastova [34]3 years ago
8 0

Answer:

The clear water representing blood, which runs through the

plastic tubes, will become green as particles from the cardboard tube

are absorbed.

Explanation:

the bold letters are answers

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In the formula, E K = 1/2 • m • v 2 if mass (m) was doubled, how much would kinetic energy
Viktor [21]

Answer:

mass doubled makes KE twice as large

velocity doubled makes KE 4 times as large

Explanation:

Try it with an example

m = 4

v = 8

KE = 1/2 m * v^2

KE = 1/2*4 * 8^2

KE = 1/2 * 4 * 64

KE = 128

Now double the mass

m  = 8

v = 8

KE = 1/2 8 * 8^2

KE = 1/2 8 * 64

KE = 4 * 64

KE = 256 double what it started out as.

Now do it again.

m = 4     That was the original mass

v = 16

KE = 1/2 4 * 16^2

KE = 2 * 256

KE = 512

When the velocity is doubled the KE becomes 4 times as big.

4*128 = 512

4 0
3 years ago
species can vary in several ways. which of the following is one of Dawin's ideas that was acceped by most scientists of his time
olga2289 [7]
It would be the fossils amount of mineral acidity im pretty sure!
4 0
3 years ago
Cell 4 and cell 7 will not be able to synthesize a major biological molecule. What molecule is this?
IrinaVladis [17]

Answer:

15. Cell 4 and Cell 7 will not be able to synthesize a major biological molecule. What molecule is this? Protein.

6 0
3 years ago
The “pacemaker” of the heart starts an electrical impulse in the right atrium to cause the atria to contract. What is the “pacem
Gemiola [76]

Hello!! The answer would be A - The SA node. It is known as the "pacemaker" because it initiates the heart's rhythmic contractions. I hope I helped!! Have a great day. :)

7 0
3 years ago
Read 2 more answers
Fossil fuels are
nekit [7.7K]

Answer:

Natural Resource.

Explanation:

Fossil fuels are hydrocarbons, primarily coal, fuel oil or natural gas, formed from the remains of dead plants and animals. In common dialogue, the term fossil fuel also includes hydrocarbon-containing natural resources that are not derived from animal or plant sources

5 0
3 years ago
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