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butalik [34]
3 years ago
5

What factors affect the survival and change(evolution) of species over time?

Physics
1 answer:
saw5 [17]3 years ago
5 0

Things adapt to the environment to survive.

Hope this helps!

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A portion of the atmosphere that becomes warmer than surrounding air will ____.
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A crate slides down a ramp that makes a 20∘ angle with the ground. to keep the crate from sliding too fast, paige pushes back on
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The solution is:
Paige's force is (somewhat) against the direction of motion: Work = F * d Where F is the force; andd is the distance
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A) leaving a copper penny in vinegar until it turns green
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The diagram shown represents a block-and-tackle pulley system on which an effort of W Newtons supports a load of 120.0N. If the
natta225 [31]

Answer:

50 N

Explanation:

Efficiency of a machine can't be more than 1, so I assume you mean 40%.  (Remember, efficiency and mechanical advantage are not the same).

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e = Wout / Win

Work is force times distance, so:

e = (Fout × Dout) / (Fin × Din)

Rearranging:

Fin = (Fout × Dout) / (e × Din)

Fin = (Fout / e) × (Dout / Din)

Fin = (Fout / e) / (Din / Dout)

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F = (120 N / 0.4) / 6

F = 50 N

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Oksanka [162]

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