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2 years ago

Select the correct answer

Physics

2 answers:

zheka24 [161]2 years ago

4 0

Answer:

A. a state of being aware of the environment and oneself.

zalisa [80]2 years ago

3 0

Answer: A state of being aware of the environment and oneself or the first choice.

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12) Photosynthesis is a chemical reaction where carbon dioxide and water react to form glucose (C6H12O6) and oxygen gas. Which r

denis23 [38]

6CO2 + 6H2O + light energy = C6H12O6 + 6O2.

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2 years ago

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Einstein's theory of general relativity is currently the best explanation of gravity.Why has this theory not been replaced with

alina1380 [7]

Answer:

Option C, It still explains the experimental evidence pertaining to gravity

Explanation:

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2 years ago

A 5.0-kg bar of lead is placed inside a 12-L chamber filled with helium gas. The temperature of the lead and helium is the same.

Pavlova-9 [17]

As the temperature of the lead and helium is the same. Thus the average kinetic energy is also the same for lead and helium.

Reason:

It is given that a 5.0-kg bar of lead is placed inside a 12-L chamber filled with helium gas. The temperature of the lead and helium is the same. It is required to compare the average kinetic energy of the lead atoms and helium atoms.

The average kinetic energy is calculated as, $K=\frac{3}{2} \frac{R}{N} T$ .

Here K is the average kinetic energy, R is the gas constant, N is the Avogadro's number, and T is the temperature.

As the temperature is the same for both lead and helium. As a result, the average kinetic energy is also the same for lead and helium.

Learn more about average kinetic energy here,

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1 year ago

What happens when a star exhausts its core hydrogen supply?

Allushta [10]

Answer:

It becomes a giant or supergiant.

Explanation:

Once all the hydrogen supply is gone, fusion of hydrogen into helium stops. The core starts to contract and liberates energy, which heats the superior layer until it becomes hot enough to start the fusion of hydrogen into helium.

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2 years ago

What is the change all living things undergo as the grow

Vladimir [108]

All of the change that living things undergo as they grow is called development. That is the name when the changes are within a single unit and over a period of time as short as a lifetime. When the change occurs over thousands of years then it's called evolution.

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3 years ago