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Dmitriy789 [7]
3 years ago
9

The nucleus of any atom requires a strong force to hold it together. This strong force is required because A) the nucleus of any

atom is so small. B) protons and neutrons repel each other. C) positive protons in the nucleus repel each other. D) the charges of the protons and the electrons cancel each other out.
Physics
2 answers:
Ratling [72]3 years ago
6 0
So I am not 100% on this but when I was learning about atoms I remember that the<span> charge: the amount of the charge has nothing to do with size. I think that electrons cancel out protons so that there is only one real Charge going</span>
<span>

</span>
Svetlanka [38]3 years ago
6 0

For Future Students The Answer is C) positive protons in the nucleus repel each other. I can confirm this because I just took the test. Hope this helped

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3) A dock worker pushes a 72 kg crate up a 2.0 m high,
Vlad [161]

Work done on the crate is 1411.2 J

Explanation:

Work done is defined as the product of force and the distance moved by the object. The unit of work done is in joules and denoted by the symbol J.

                                     Work done = F * d

where F represents the force and d represents the distance moved by the object.

mass = 72 kg , distance moved by the object is given by 2.0 m

Force F = mass * gravity = 72 * 9.8

             = 705.6 N =706 N.

Work done = 706 * 2.0 = 1412 J.

                   

7 0
3 years ago
Why do yall like Biden
stealth61 [152]
“We LoVeEe BiDeN bEcAuSe hIs HeAlThCaRe iSn’T FrEeEeE!”
6 0
3 years ago
Read 2 more answers
The periodic table is an arrangment of the chemical elements, ordered by atomic number, into families, and by doing so illustrat
olya-2409 [2.1K]

Answer:

  • <em><u>Option B) reactive to nonreactive</u></em>

Explanation:

<u>A) Solid to gas</u>

This might apply, because most of the gases are to the right portion of the periodic table

There are just a few elements that are gases at room temperature; a total of 11: six noble gases (group 18), two halogens (group 17), oxygen (group 16), nitrogen (group 15), and hydrogen (group 1).

Hydrogen is an exception to this trend because they are in the left part of the periodic table.

<u>B) Reactive to nonreactive</u>

The most reactive metals are in group 1 (alkali metals) and the most reactive nonmentals are in the group 18 (halogens). Hence, it is false that the from left to right the preperties go from reactive to nonreactive.

Hence, this is the one that cannot apply.

<u>C) Metal to metalloid to nonmetal</u>

It is true that the metallic character of the elements decreases from left to right; the metals are to the left, going to the right you find some metalloids, and further to the right you find the nonmetals.

Hence, this trend is correct.

<u />

<u>D) Increasing number of outer-shell electrons</u>

The number of outer-shell electrons definetly increase from left to right.

The number of electrons in neutral atoms equals the number of protons (to balance the positive and negative charges). Since, the atomic number (the number of protons) increase from left to right, the number of electrons also increase.

In a period (a row of the periodic table) the electrons add to the same outer-shell, then you will find that the number of electrons of the outer-shell increase from left to right. Hence, this is also a correct trend.

In conclusion, the only trend that does not apply is the described by the option B).

4 0
3 years ago
Read 2 more answers
Brainliest if right.
jeka57 [31]

Answer:

the third law (for every action there is an equal and opposite reaction).

Explanation:

The skateboarder pushes backwards on the road (that is he applies a force on the road in a direction opposite the direction of intended motion). By Newton's third law, this action of the skateboarder causes an equal reaction of the road on the skateboarder in the opposite direction. Newton's third law states that action and reaction are equal but opposite in direction. So, the road in response to this backward force pushes the skateboarder in the forward direction causing the skateboarder and the skateboard to move in the forward direction.

5 0
3 years ago
What is the definition of an unbalanced force?
Shtirlitz [24]
<span>an unbalanced force is Forces that are not equal</span>
3 0
3 years ago
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