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TEA [102]
3 years ago
9

Humans impact the Earth in good AND bad ways. A) True B) False

Physics
1 answer:
const2013 [10]3 years ago
7 0

Answer:

True

Explanation:

yes we can see that we are helping animals but we create pollution which is very bad

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During the developing of a TLC plate, it is common to place a cover on the chromatography chamber and have a piece of moist filt
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Answer:

The moist filter paper is in charge of preventing evaporation and ensuring the proper saturation of the air of the chromatography chamber.

Explanation:

Thin-layer chromatography (TLC) is a chromatography technique used to separate non-volatile mixtures.

A strip of moist filter paper is put into the chromatography chamber so that its bottom touches the solvent and the paper lies on the chamber wall and reaches almost to the top of the container.

The container is closed and left for a few minutes to let the solvent vapors ascend the moist filter paper and saturate the air in the chamber.

The moist filter paper is in charge of preventing evaporation and ensuring the proper saturation of the air of the chamber.

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The normal eye, myopic eye and old age
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length f′0 when the eye is presbyopic and by a screen (the retina) at the distance d from the

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The force a magnet exerts on another magnet, on iron or a similar metal, or on moving charges is
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The answer is a magnetic force.
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Rays of light strike a bumpy road and are reflected.
ser-zykov [4K]

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last option is the correct one

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In the aerials competition in skiing, the competitors speed down a ramp that slopes sharply upward at the end. The sharp upward
11111nata11111 [884]

Answer:

u = 11.6 m/s

Explanation:

The end of a launch ramp is directed 63° above the horizontal. A skier attains a height of 10.9 m above the end of the ramp.

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Let v is the launch speed of the skier. The maximum height attained by the projectile is given by :

H=\dfrac{u^2\ sin^2\theta}{g}

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u = 11.6 m/s

So, the launch speed of the skier is 11.6 m/s. Hence, this is the required solution.

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3 years ago
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