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avanturin [10]
3 years ago
8

Lava from a volcano becomes solid as a result of

Physics
2 answers:
Norma-Jean [14]3 years ago
7 0

Answer:

B. heating.

Explanation:

Arlecino [84]3 years ago
5 0

Answer:

A. Cooling

Explanation:

Because when Lava cools down, it hardens and becomes a solid, and is less hotter.

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A 100 kg boat is floating in water. half of the boat is submerged under water. what is the weight of the boat?
Alex17521 [72]
W=MG
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hope this helps
7 0
3 years ago
When should you use a piece of pipe as a leverage extension on the handle on a wrench?
Vesnalui [34]

Answer:

D

Explanation:

We must never use a piece of pipe as a leverage extension on the handle on a wrench.

Hence option d is correct.

7 0
3 years ago
A tennis ball with a speed of 25.9 m/s is moving perpendicular to a wall. After striking the wall,
mihalych1998 [28]

Answer:

-3550.1 m/s^2

Explanation:

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while the final velocity of the ball is

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t = 0.0133 s

The acceleration can be calculated as the  change in velocity divided by the time taken:

a=\frac{v-u}{t}

Substituting the numbers, we find:

a=\frac{-21.3157-25.9}{0.0133}=-3550.1 m/s^2

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The natural pH of rain water is?
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5.6 which would be acidic!
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