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Reptile [31]
3 years ago
8

Hands are very cold and the cup is very hot, heat energy transfers from the cup to her hands because

Chemistry
1 answer:
photoshop1234 [79]3 years ago
8 0
Heat flows from a region of greater potential to lower potential?
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How did I get the sand out the mixture ?
svetoff [14.1K]

Answer:

They are called homogenous mixtures. If you put sand into a glass of water, it is considered to be a mixture. You can always tell a mixture, because each of the substances can be separated from the group in different physical ways. You can always get the sand out of the water by filtering the water away.

4 0
3 years ago
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The amount of gravitational force impacts the weight of objects.<br> true or false
ElenaW [278]

Answer:

True

Explanation:

It's how gravity works.

8 0
3 years ago
An element has an atomic mass of 69.66 amu. It has two
marin [14]

Answer: 63.26%

Explanation:

If we let the abundance of the first isotope be x, then:

69.66=(68.9255)(x)+(70.9247)(1-x)\\69.66=68.9255x+70.9247-70.9247x\\-1.2647=-1.9992x\\x=\frac{-1.2647}{-1.9992} \approx 0.6326

Which is equal to <u>63.26%</u>

7 0
1 year ago
How would granite be classified as
vredina [299]

Answer:

Granite is an intrusive igneous rock which means it is cooled slowly deep upper the Earth's crust. It is composed of 25% to 35% quartz and over 50% potassium- and sodium rich feldspars.

Explanation:

4 0
3 years ago
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What causes differences in air pressure
shtirl [24]
Unequal heating of the atmosphere
5 0
3 years ago
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