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4 years ago

Which of the following apply to food webs? Select all that apply.

2 answers:

8 0

Food webs are a group of connected food chains.
Arrows in a food web go from the organism that is being eaten to the organism that is eating it.
Arrows in a food web represent the flow of energy in a food web.
Food webs show all of the eating patterns in an ecosystem.

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motikmotik4 years ago

6 0

Let me see it because for some reason there’s not a picture here

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3 years ago

In the non-random-mating exercise the percentage and frequency data for the genes were unaffected by the non-random mating. True

Mademuasel [1]

Answer:

False

Explanation:

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3 years ago

Two balloons having the same charge of 1.2 × 10-6 coulombs each are kept 5.0 × 10-1 meters apart. What is the magnitude of the r

Pavel [41]

The answer is 5.2 × 10-2 newtons.

To calculate this, we will use Coulomb's Law:
F = $\frac{k * Q_{1} * Q_{2} }{ r^{2} }$
where F is repulcive force, k is constant, Q is charge, r is distance between charges.

If:
 $Q_{1}$ = $Q_{2}$ = 1.2 × $10^{-6}$ C²
r = 5.0 × $10^{-1}$ C²
k = 5.0 × $10^{9}$ $\frac{N*m^{2} }{ C^{2} }$

Then:
 $F = \frac{5.0* 10^{-1} \frac{N* m^{2} }{ C^{2}} * 1.2 * 10^{-6} C * 1.2 * 10^{-6} C }{(5.0* 10^{-1} m)^{2}}$
⇒ $F= \frac{9 * 1.2 * 1.2 * 10^{-3} N }{25* 10^{1} }$
⇒ $F = \frac{12.96* 10^{-2} }{25} N$
⇒ $F = 5.2 N$

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3 years ago

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Answer:

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Explanation:

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3 years ago