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2 years ago

When we add or remove energy from a substance, what kind of changes can we observe? Can they happen at the same time ?

Physics

1 answer:

goldenfox [79]2 years ago

5 0

Answer:

Removing Energy: Removing energy will cause the particles in a liquid to begin locking into place. A. Boiling and Evaporation: Evaporation is the change of a substance from a liquid to a gas.

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Where is the Oort cloud located?

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2 years ago

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At a certain instant, the speedometer of the car indicates 80 km/h.

Scorpion4ik [409]

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2 years ago

Convert 27,549 into scientific notation

dezoksy [38]

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2 years ago

It is estimated that uranium is relatively common in the earth's crust, occurring in amounts of 4 g / metric ton. A metric ton i

timama [110]

Answer:

The mass of Uranium present in a 1.2mg sample is $4.8 \cdot 10^{-6}\,mg$

Explanation:

The ration between Uranium mass and total sample mass is: $\frac{4g}{1000kg} =\frac{4g}{1000000g}=\frac{1}{250000}$

For a sample of mass 1.2 mg, the amount of uranium is:

$1.2\, mg \cdot \frac{1}{250000}=4.8 \cdot 10^{-6}\,mg$

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2 years ago

How do galaxies vary?

givi [52]

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