In the Tough Man Competition, very strong men are challenged to push or pull extremely large and heavy objects to test their str
ength. In one such challenge, they were asked to push one of two rail cars, an engine car and a box car. The data tables show one man’s results. Look over the data table and answer the questions below.
A. Why couldn't the strong man move the box car with a force of 3000 Newtons? Make sure to include Newton's 2nd Law in your explanation.
B. What could be done to move the boxcar?
C. Another student claims that during the competition, the sum of the forces on the boxcar was 0 N. What evidence is the student using to make this claim? Be sure to explain your thinking.
A. Why couldn't the strong man move the box car with a force of 3000 Newtons? Make sure to include Newton's 2nd Law in your explanation.
B. What could be done to move the boxcar?
C. Another student claims that during the competition, the sum of the forces on the boxcar was 0 N. What evidence is the student using to make this claim? Be sure to explain your thinking.
1 answer:
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<u>Answer:</u> Pairs are: (a) and (d), (b) and (f), (c) and (e)
<u>Explanation:</u>
In a periodic table, elements are arranged in 18 vertical columns known as groups and 7 horizontal rows known as periods.
Elements arranged in a group show similar chemical properties because of the presence of same number of valence electrons.
Valence electrons are defined as the electrons which are present in the outermost shell of an atom. Outermost shell has the highest value of 'n' that is principal quantum number.
For the given options:
- <u>For a:</u>
The given electronic configuration is:
The number of valence electrons in the given configuration are 2
- <u>For b:</u>
The given electronic configuration is:
The number of valence electrons in the given configuration are [2 + 3] = 5
- <u>For c:</u>
The given electronic configuration is:
The number of valence electrons in the given configuration are [2 + 6] = 8
- <u>For d:</u>
The given electronic configuration is:
The number of valence electrons in the given configuration are 2
- <u>For e:</u>
The given electronic configuration is:
The number of valence electrons in the given configuration are [2 + 6] = 8
- <u>For f:</u>
The given electronic configuration is:
The number of valence electrons in the given configuration are [2 + 3] = 5
Electronic configuration of (a) and (d) will form a pair, (b) and (f) will form a pair, (c) and (e) will form a pair and will have similar chemical properties.
Hence, the pairs are: (a) and (d), (b) and (f), (c) and (e)