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How old is an artifact that contains 12.5 percent of its original carbon-14?
Wiki User
∙ 13y ago
3 times the half-life.
Wiki User
∙ 13y ago
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Suppose that you measure the intensity of radiation from carbon-14 in an ancient piece of wood to be 6 percent of what it would be in a freshly cut piece of wood How old is this artifact?
Based on the half-life of carbon-14 (about 5730 years), if the intensity of radiation from carbon-14 in the ancient wood is 6 percent of that in a fresh piece, the wood is approximately 3 half-lives old (5730 years x 3 = 17,190 years). Therefore, the artifact is roughly 17,190 years old.
In living things what is the source of the carbon14 that is used in radiocarbon dating?
The source of carbon-14 used in radiocarbon dating is cosmic radiation. Carbon-14 is produced in the Earth's atmosphere when cosmic rays collide with nitrogen atoms, creating carbon-14 isotopes. This carbon-14 is then absorbed by living organisms through the process of photosynthesis and becomes a part of their biological tissues.
What landform makes up 50 percent of US?
Plains make up 50 percent of the United States. The Great Plains region extends from the Gulf of Mexico to the Canadian border and covers vast areas in the central part of the country. These plains consist of flat or gently rolling land with few natural barriers.
What percent of professional archaeologists are women?
Approximately 50% of professional archaeologists are women. However, the representation of women can vary depending on geographical location and field of specialization within archaeology.
What percent of roman people were engaged in farming?
Around 90% of the ancient Roman population were engaged in farming as agriculture was the main economic activity in the Roman Empire. The majority of Roman citizens lived in rural areas and worked as farmers to produce food for their families and the empire.
An artifact is found that some are claiming is 30000 years old 3.1 percent of the original carbon14 is present The halflife of carbon14 is 5730 year?
Yes, but the dating is only off a little (500 years or so).
What percent of carbon14 is left after 5 half-lives?
3.125% would be left over.
A mixture contains ninety-two ounces of glycol and water and is forty-five percent glycol. If the mixture is to be weakened to thirty percent how much water must be added?
The original mixture contains 41.4 ounces of glycol. for this to be 30 percent of the mixture, the total mixture must be 138 ounces, so 46 ounces of water must be added.
How many Percent does the original remains of the Philippine Forest have?
20 percent of the original remains of the Philippine forest
What region contains nearly 75 percent of Scotland's people?
Strathclyde contains nearly 75 percent of Scotland's people.
An artifact is found that some are claiming is 11100 years old A laboratory analysis shows that approximately 26 percent of the original carbon-14 is present The half-life of carbon-14 is 5730 year?
Yes, but the dating is only off a little (500 years or so).
An artifact is found that some are claiming is 6200 years old A laboratory analysis show is that approximately 48 percent of the original carbon 14 is present The half life of carbon-14 is 5730 old?
Yes, but the dating is only off a little (500 years or so).
What percent expresses a 5 percent decrease in the original whole?
95% You simply subtract the decrease from the original 100%.
How do you do Percent of change?
percent of increase-new-original over originalthen make the decimal a percent of increasepercent of decrease-original-new over originalthen make the decimal a percent of decrease
How do you do percent change?
percent of increase-new-original over originalthen make the decimal a percent of increasepercent of decrease-original-new over originalthen make the decimal a percent of decrease
What is the percent decrease from 220 to 33?
Percent Decrease = (Original Amount - New Amount)/(Original Amount) * 100% The percent decrease from 220 to 33 is 85%
The percent of change found when the original amount decreases is called the percent of?
percent of decrease
