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klio [65]
4 years ago
11

What are 3 facts you learned about the periodic table:

Physics
1 answer:
d1i1m1o1n [39]4 years ago
7 0

Answer: the rarest element is Francium. J is not on the periodic table. also Dmitri Mendeleev proposed the periodic table.

Explanation: Kinda looked the last one up.

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Newton's laws of motion work well for ordinary situations on earth. However, these laws of motion do not work for all cases. Und
soldier1979 [14.2K]
I believe the answer is C: For objects at extremely fast speeds.
Hope this helps!
5 0
4 years ago
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Density: Two blocks, A and B, are put in a tank of water. Block A has a density of 1.21 g/cm³. Block B has a density of 1.37 g/c
stira [4]

Answer:

Block A

Explanation:

Block A will float higher in the water compared to the second Block.

The density of water is 1g/cm³.

According to the principle of floatation "an object that floats in a liquid will displace equal amount of fluid to the weight of the object".

A body will become more submerged in water if it has more density because density is the mass per volume of  body.

An object with a higher density than another will sink in the liquid of the one with lesser density.

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4 0
3 years ago
The population in the United States in 2015 was 321 million people. It is projected to increase to 438 million people by the yea
NemiM [27]

This can be solve by using the formula

F = p (1+ i)

Where F is the future population

P is the present population

I is the fraction increase

438 = 321*( 1 + I )

I = 0.36

<span>% increase 36%</span>

5 0
4 years ago
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PLEASE HELP ENVIRONMENTAL SCIENCE QUESTION !
8090 [49]
1.) The rain will erode the concrete that's why sometimes you see marks in concrete surfaces.
2.) The streams, creeks, rivers, and etc, would overflow or flood and make new bodies of water but then when it dries up the water will dry up.
4 0
3 years ago
If the acceleration vector of an object is directed parallel to the velocity vector, then Select one:
Naya [18.7K]

Answer:

a. The object is moving with a constant velocity.

3 0
3 years ago
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