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2 years ago

AVERAGE WEIGHT OF CHILDREN, AGE 1-5

Chemistry

1 answer:

aalyn [17]2 years ago

5 0

The most weight was gained between 0 - 1 years for both boys and girls.

<h3>What is weight?</h3>

Weight is a vector quantity that varies from place to place to due to effect of gravity.

Average weight of the boys in pounds;

age -------------------- average weight

0 -------------------------50

1 ------------------------- 45

2 ------------------------ 40

3 ------------------------- 35

4 -------------------------- 30

5 -------------------------- 25

Average weight of the girls in pounds;

0 --------------------------------- 20

1 ----------------------------------- 15

2 ------------------------------------ 10

3 --------------------------------------5

4 -------------------------------------- 0

5 --------------------------------------- 1

The most weight was gained between 0 - 1 years for both boys and girls.

Learn more about average weight here: brainly.com/question/24889549

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67.6 years is the time the isotope take to decay from 0.900g to 0.170g

Explanation:

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<em>Where [A] is concentration after time t,</em>

<em>k is decay constant:</em>

<em>k = ln2 / 28.1 years</em>

<em>k = 0.02467 years⁻¹</em>

<em>[A]₀ = Initial concentration.</em>

<em />

We can replace concentration and use the mass of the isotope:

Ln [A] = -kt + ln[A]₀

Ln [0.170g] = -0.02467 years⁻¹t + ln[0.900g]

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t =

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