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tia_tia [17]
3 years ago
14

3. Your friend says your body is made up of more than 99.9999% empty space. What do you think?

Physics
1 answer:
Nesterboy [21]3 years ago
8 0

Answer:

I would agree with the statement. it's not just the body, but everything that we see is almost 99.9999% empty space

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Which statement is true regarding a chemical reaction?
alina1380 [7]

Answer:

B) The total number of atoms does not change, so mass is conserved in the reaction.

Explanation:

According to the <u><em>Law of Conservation of Mass</em></u>, no matter can ever be created or destroyed. The number of atoms does not change, thus the mass does not change.

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3 years ago
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An object weighs 10N on earth .what is the objects weight on a planet one tenth the earths mass and one half its radius?
earnstyle [38]
We know, weight = mass * gravity 
10 = m * 9.8
m = 10/9.8 = 1.02 Kg

Now, Let, the gravity of that planet = g'
g' = m/r²   [m,r = mass & radius of that planet ]
g' = M/10 / (1/2R)²   [M, R = mass & radius of Earth ]
g' = 4M / 10R²
g' = 2/5 * M/R²
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g' = 2/5 * 9.8
g' = 3.92

Weight on that planet = planet's gravity * mass
W' = 3.92 * 1.02
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In short, Your Answer would be 4 Newtons

Hope this helps!
3 0
3 years ago
4: A piece of fur is negatively charged when:
MatroZZZ [7]

Answer:

the fur is unexpected

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The law of universal gravitation states that any two objects in the universe, without exception,
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A. attract each other.

The Law of Universal Gravitation discusses the phenomenon of gravity. Remember that gravity is the force that keeps us on Earth; the Earth pulls us down, and our bodies pull back.  Gravity is the force of attraction, so the correct answer is a).
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How are gas particles arranged in a container?
joja [24]

Answer:

3. Tightly Packed

Explanation:

Hope this helps

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