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alina1380 [7]
2 years ago
7

There are about 11,200,000 billion metric tons of in the atmosphere. Based on an estimated photosynthesis rate of 600 billion me

tric tons per year, how many years might it have taken to reach current levels? (Note: Assume for this exercise that the rate of production is constant even though it has changed over time.)
Science and Engineering Practices
Physics
1 answer:
zhannawk [14.2K]2 years ago
3 0

Answer:

-48,800,000 or 71,200,000

Explanation:

subtraction or addition :D

I hope I helpped (ㆁωㆁ)

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Inessa [10]
In order to make things easier to describe and explain, let's call
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a).  In series, the total resistance is 3R.
In parallel, the total resistance is R/3.
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b).  In series, the total current is  V / (3R) .
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Changing from series to parallel, the total current in the circuit
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c).  In series, the power dissipated by the circuit is 

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Changing from series to parallel, the power dissipated by
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3 years ago
Object A experiences an attractive force of 50 N when it comes close to Object B. If Object A is positively charged, what can yo
denis23 [38]
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4 0
2 years ago
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What are the three rules for writing the electron configuration of elements
astraxan [27]

<em></em>

Answer:

<u><em>The aufbau principle</em></u>

<u />

<u><em>The Pauli exclusion principle</em></u>

<u><em></em></u>

<u><em>Hund's rule of maximum multiplicity</em></u>

Explanation:

<u><em>The aufbau principle:</em></u>

<em></em>

The fundamental electronic configuration is achieved by placing the electrons one by one in the different orbitals available for the atom, which are arranged in increasing order of energy.

<u><em>The Pauli exclusion principle:</em></u>

<em></em>

Two electrons of the same atom cannot have their four equal quantum numbers.  Because each orbital is defined by the quantum numbers n, l, and m, there are only two possibilities ms = -1/2 and ms = +1/2, which physically reflects that each orbital can contain a maximum of two electrons, having opposite spins

<u><em>Hund's rule of maximum multiplicity:</em></u>

This rule says that when there are several electrons occupying degenerate orbitals, of equal energy, they will do so in different orbitals and with parallel spins, whenever this is possible.  Because electrons repel each other, the minimum energy configuration is one that has electrons as far away as possible from each other, and that is why they are distributed separately before two electrons occupy  the same orbital.

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2 years ago
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3 0
3 years ago
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Zepler [3.9K]

Explanation:

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3 years ago
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