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Tanzania [10]
3 years ago
9

Many animals use scent to _____.

Physics
2 answers:
frez [133]3 years ago
5 0
The answer would be B-mark their territory. many animals use the scent of their urine or other strong scented substances to mark their territory and let others know the limits of their domain.
IRISSAK [1]3 years ago
4 0
Many animals use scent to <span>mark their territory.</span>
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Suppose the entire population of the world gathers in ONE spot and everyone jumps at the sound of a prearranged signal. While ev
puteri [66]

Answer:

(b) Yes, the earth gains momentum but the change in momentum of the earth is much lesser compared to that of everyone in the air. The resistance to motion (inertia of the earth), which is a function of its mass is so great that the earth's acceleration is small in the given time frame.

Explanation:

From Newton's second law which can be stated mathematically as

F = m(v-u)/t = ma.

By Newton's law of gravitation, there is a force between the earth and everyone in the air. This force is responsible for the change in momentum of everyone in the air and this force gives them an acceleration equal to g = 9.80m/s². By Newton's law of gravitation and Newton's third law of motion, this force is also equal to the force exerted by everyone on the earth.

For this to be true,

F = M (everyone) ×a (everyone) = M(earth) × a (earth).

And

a (earth) = {M (everyone) ×a (everyone) }/M (earth)

Then

a (earth) must be lesser than a (everyone) since M(earth) >> M(everyone).

a = change in momentum/ time

Therefore the earth will have a much lesser change in momentum which is the reason we won't notice the earth's movement.

Thank you for reading.

6 0
3 years ago
1) An object travels 15 m in 3 s. What is its' speed?​
Sav [38]

Answer:

5m/s

Explanation:

Distance/Time= Speed

D/T=S

15/3=S

5=S

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c

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I’m not sure how to do this
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Do what?? i know how to do a lot of things to answer but there’s nothing to answer.‍♀️
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