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DaniilM [7]
3 years ago
9

A __________ region groups people together according to their traditio

Geography
1 answer:
mr Goodwill [35]3 years ago
4 0

Answer: Culture

Explanation:

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A rock is radiometrically dated to determine its age. The laboratory doing the dating discovers that the rock currently has 200
Soloha48 [4]

Answer: The rock is 2000785 years old.

Explanation:

Expression for rate law for first order kinetics is given by:

t=\frac{2.303}{k}\log\frac{a}{a-x}

where,

k = rate constant

t = age of sample

a = initial amount of the reactant  = 800

x = amount of daughter isotope = 600

a - x = amount left after decay process = amount of parent isotope = (800-600) = 200

Half life is the amount of time taken by a radioactive material to decay to half of its original value.

t_{\frac{1}{2}}=\frac{0.693}{k}

k=\frac{0.693}{1000000}=0.000000693years^{-1}

t=\frac{2.303}{0.000000693}\log\frac{800}{200}

t=2000785years

The rock is 2000785 years old.

6 0
3 years ago
The best definition of population density is:?
TiliK225 [7]

It is a measurement of population per unit area or unit volume.....

BASIC AND BEST :)

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2 years ago
The solar system has ______Planets, and earth is the _____planets, and Earth is the
svet-max [94.6K]
The answer is 8...third
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3 years ago
When the sun produces energy, it consumes hydrogen and produces
Mademuasel [1]

Answer:

Helium

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The sun produces energy by fusing hydrogen atoms into helium atoms. This is a nuclear fusion that occurs at the suns core.

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3 years ago
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You have a straight angle with three angles on it one measures 45 degrees and the other measures 65 degrees. What is the measure
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Answer:

A straight angle measures 180°. ... An angle can be measured using a protractor, and the angle of measure 90 degrees is called a right angle. In a right angle, the two arms are perpendicular to each other. When the right angle is divided into two equal parts each angle measures 45°.

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2 years ago
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