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yuradex [85]
2 years ago
15

Back in their laboratory, the team of scientists carefully measure the changes in density of a freshwater sample as they decreas

e its temperature from 20°C to 0°C. Based on the data in the table, what effect does decreasing the temperature from 20°C to 4°C have on the sample’s density?
Physics
2 answers:
BabaBlast [244]2 years ago
7 0

Answer: As the temperature of the water decreases from 20 degrees celsius to 4 degrees celsius, the density increases.

Explanation:

Y_Kistochka [10]2 years ago
5 0

The correct answer to this question would be.

As the temperature of the water decreases from 20°C to 4°C, the density increases.

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When an object is immersed in a fluid (in this case water, but may include both liquids and gases) the fluid exerts an upward force on the object which is called buoyancy force or <span>up-thrust.  Archimedes’ Principle states that the buoyant force (upward push or force) applied to an object is equal to the weight of the fluid that the object takes the space of by that object.  Thus when an object is placed in water the rise in the water level is dictated by the mass of that object.</span>

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<span>So for example if you fill a bucket with water and you drop a stone in that bucket, if you measure the weight of the water that overflows from the bucket due to the stone being dropped into the bucket is equivalent to the pushing force that the water has on the stone (as the stone drops to the bottom of the bucket the water is pushing it to stay afloat but the rock is more dense than water and as such its downthrust exceeds water's upthrust).</span>


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Hope it helps..

Just correct me if I'm wrong, okay?

But ur welcome!!

(;ŏ﹏ŏ)(◕ᴗ◕✿)

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