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Korvikt [17]
3 years ago
6

What purpose does a fish ladder serve?

Biology
2 answers:
Travka [436]3 years ago
4 0
The answer is A. It helps some kinds of fish migrate past dam barriers.
Whitepunk [10]3 years ago
3 0

<u>Answer</u>: Option A

<u>Explanation</u> :

  • A<em> fish ladder</em> is also known as fish steps, fish pass or fishway.
  • It is built around waterfalls, dams and locks.
  • The purpose of building a fish ladder is to<em> facilitate the natural migration of diadromous fishes.</em>
  • A fish ladder helps the fish to pass through the barriers by leaping up or swimming through the low steps of the ladder and reach into the water on the other side.
  • Since, without the fish ladder the barriers will not allow the migration of fishes, it is essential to be built around the dams, waterfalls and locks.
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If the force exerted on a sled is 100 N and the mass of the sled is 50 kg, what is the acceleration of the sled?
Anna35 [415]
<h3><u>Answer;</u></h3>

acceleration= 2 m/s²

<h3><u>Explanation;</u></h3>

From the second Newton's Law of motion the resultant force is directly proportional to the rate of change in momentum.

That is;

F = ma

Thus; F = 100 N, m = 50 kg

a = F/m

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