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Andrews [41]
3 years ago
10

Why doesn’t the moon move away from earth

Chemistry
1 answer:
Leni [432]3 years ago
8 0
The earth has the moon captured in its gravity. this keeps the moon in an elliptical orbit
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How are the number of protons and neutrons represented in a periodic table?
sp2606 [1]

Answer:

The atomic number or proton number (symbol Z) of a chemical element is the number of protons found in the nucleus of every atom of that element. The atomic number uniquely identifies a chemical element.

Explanation:

5 0
2 years ago
Does mint really cool your breath? doing a science fair and also is there three good questions i could use for the topic?
PilotLPTM [1.2K]

Answer:

Yes it does.

Explanation:

8 0
3 years ago
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The half life of radium-226 is 1600 years. If you have 200 grams of radium today how many grams would be present in 8000 years?
Sveta_85 [38]

Answer:

Half life is the time taken by a radio active isotope to reduce by half of its original amount. Radium-226 has a half life of 1602 years meaning that it would take 1602 years for a mass of radium to reduce by half.

Number of half lives in 9612 years = 9612/1602 = 6 half lives

New mass = Original mass x (1/2)n where n is the number of half lives.

Therefore, New mass= 500 x (1/2)∧6

                                 = 500 x 0.015625

                                 = 7.8125 g

Hence the mass of radium after 9612 years will be 7.8125 grams.

Explanation:

3 0
3 years ago
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Plan an investigation using solid and liquid water to show that thermal energy is not the same as temperature.
algol [13]

The investigation using solid and liquid water to show that thermal energy is not the same as temperature is:

  • Place a glass of water and a lake and both should be at the same temperature, find out if do they have the same amount of total thermal energy.

<h3>What is the response to the experiment above?</h3>

The response is No, because the lake is known to have a lot more particles than the glass of water and so they will not have the same  thermal energy.

Note that the temperature is seen as the an average and thermal energy is seen to be the total. A glass of water can be able to have the same temperature as what we call Lake Superior, but the lake has a lot of thermal energy due to the fact that the lake has a lot of water molecules.

So the investigation using solid and liquid water to show that thermal energy is not the same as temperature is Place a glass of water and a lake and both should be at the same temperature, find out if do they have the same amount of total thermal energy.

Learn more about thermal energy from

brainly.com/question/19666326

#SPJ1

4 0
1 year ago
Everything in the world is made of matter except you??<br><br> TrueFalse
katen-ka-za [31]

Answer:

False.

Explanation:

Humans are made of matter too :)

8 0
2 years ago
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