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trapecia [35]
2 years ago
5

Which of the following changes would be a physical change to a substance?(1 point)

Physics
1 answer:
Naddika [18.5K]2 years ago
6 0

Answer:

all of them I think

Explanation:

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During the "U" part of the turn, the car would follow an approximately circular path, and if it's moving at a constant speed, it would have to accelerate toward the center of the circle in order to change its direction.

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If the rectangular barge is 3.0 m by 20.0 m and sits 0.70 m deep in the harbor, how deep will it sit in the river?
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The harbour contains salt water while the river contains fresh water. So assuming that the densities of fresh water and salt water are:

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Since mass is also the product of density and volume, therefore:

<span>[density * volume]_salt water = [density * volume]_fresh water                 ---> 1</span>

 

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Therefore the depth of the barge in the river is:

43.218 m^3 = 3.0 m * 20.0 m * h

<span>h = 0.72 m        (ANSWER)</span>

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