An artifact was found and tested for its carbon14 content. If 74% of the original carbon14 was still present, what is its probable age (to the nearest 100 years)? Use that carbon14 has a halflife of 5,730 years. 1 yr
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science
The ocean stores carbon from its interactions with the atmosphere, so the ocean serves as (a) _________ for the carbon cycle. carbon flux carbon dioxide carbon source carbon sink*** Bacteria add carbon to the carbon cycle by decomposing dead organisms.***

science
3. How would the carbon cycle be affected if all producers were removed? (1 point) Carbon compounds in animals would not be broken down to release carbon dioxide back into the atmosphere. Carbon would not have a way to enter the bodies of living things.

math
A wooden artifact from an ancient tomb contains 70% of the carbon14 that is present in living trees. How long ago was the artifact made? (The halflife of carbon14 is 5730 years. Round your answer to the nearest whole number.)

Science Last question
Which of the following is true of carbon? Carbon is present in all organisms and in the atmosphere.* Carbon moves from consumers to producers. Carbon must be fixed by bacteria before other organisms can use it. Carbon can only be released from dead

Science Help!
Lisa studied the models of three carbon nuclei shown below. She listed information about the carbon nuclei in a table. Name Carbon 12 number of protons 6 number of neutrons 6. Name Carbon 13 number of protons 6 number of neutrons 7. Name Carbon 14 number

Chemistry
The cloth shroud from around a mummy is found to have a carbon14 activity of 8.1 disintegrations per minute per gram of carbon as compared with living organisms that undergo 15.2 disintegrations per minute per gram of carbon. From the halflife for

Science
Which of the following is true of carbon? Carbon is present in all organisms and in the atmosphere.* Carbon moves from consumers to producers. Carbon must be fixed by bacteria before other organisms can use it. Carbon can only be released from dead

Calculus
For the decomposition of Carbon 14, find the age of a prehistoric cave painting discovered in the Lascaux Caves in southern France if the amount of Carbon 14 has decayed to 14.29%...again using calculus formulas. Not sure how to use this equation (content

MATH 123
A wooden artifact from an ancient tomb contains 55% of the carbon14 that is present in living trees. How long ago was the artifact made? (The halflife of carbon14 is 5730 years. Round your answer to the nearest whole number.)

chemistry
An unknown compound contains only carbon, hydrogen, and oxygen (CxHxOx). Combustion of 3.50G of this compound produced 5.13G of carbon dioxide and 2.10G of water A.How many moles of carbon, , were in the original sample? b. How many moles of hydrogen, ,

algebra
Use the fact that after 5715 years a given amount of carbon 14 will have decayed to half the original amount to find the exponential decay model for carbon 14. In 1947, earthenware jars containing what was known as the Dead Sea scrolls were found by an

chemistry help
When carbon dioxide and carbon react the balanced equation is Co2+C2Cq Calculate the mass of carbon monoxide formed from 4.4g of carbon dioxide

math
An artifact was found and tested for its carbon14 content. If 88% of the original carbon14 was still present, what is its probable age (to the nearest 100 years)? Use that carbon14 has a halflife of 5,730 years.

physics
A wooden artifact is found in an ancient tomb. Its carbon14 activity is measured to be 60.0% of that in a fresh sample of wood from the same region. Assuming the same amount of carbon14 was initially present in the wood from which the artifact was made,

algebra 2
In the formula A(t) = A0ekt, A is the amount of radioactive material remaining from an initial amount A0 at a given time t, and k is a negative constant determined by the nature of the material. An artifact is discovered at a certain site. If it has 72% of

Algebra
A wooden artifact from an ancient tomb contains 45 percent of the carbon14 that is present in living trees. How long ago, to the nearest year, was the artifact made

Astronomy
One possible energy source for the mysterious object you've just discovered is the fusion of hydrogen to form carbon12 (the most common and stable isotope of Carbon). Hydrogen has an atomic mass of 1.00794 u, while carbon has an atomic mass of 12.010 u.

MA240 Please help
An artifact originally had 16 grams of carbon14 present. The decay model A = 16e 0.000121t describes the amount of carbon14 present after t years. How many grams of carbon14 will be present in 5715 years? A. Approximately 7 grams B. Approximately 8

applied algebra
An artifact was found and tested for its carbon14 content. If 74% of the original carbon14 was still present, what is its probable age (to the nearest 100 years)? Use that carbon14 has a halflife of 5,730 years. 1 yr

Chemistry
An archeological artifact was subjected to radiocarbon dating. The artifact showed a carbon14 decay rate of 13.8 disintegrations/ min per gram of carbon. Carbon14 has a halflife of 5715 years, and currently living organisms decay at the rate of 15.3

physical science
An artifact contains onefourth as much carbon14 as the atmosphere. How old is the artifact? Use Figure 103 to answer this question.

Math
A bone is found to have 45% of the original amount of carbon 14. If the half life of carbon is 5600 years, how old is the bone. Would I use the formula N=No e^kt?

Chemistry
You wish to increase the carbon content of a slab of steel by exposing it to a carburizing atmosphere at elevated temperature. The carbon concentration in the steel before carburization is 243.0 ppm and is initially uniform through the thickness of the

algebra
An artifact was found and tested for its carbon14 content. If 84% of the original carbon14 was still present, what is its probable age (to the nearest 100 years)? Use that carbon14 has a halflife of 5,730 years.

math
An artifact was found and tested for its carbon14 content. If 81% of the original carbon14 was still present, what is its probable age (to the nearest 100 years)? Use that carbon14 has a halflife of 5,730 years. yr

algebra
An artifact was found and tested for its carbon14 content. If 75% of the original carbon14 was still present, what is its probable age (to the nearest 100 years)? (Carbon14 has a halflife of 5,730 years.) thank you

math
An artifact was found and tested for its carbon14 content. If 79% of the original carbon14 was still present, what is its probable age (to the nearest 100 years)? (Carbon14 has a halflife of 5,730 years.)

algebra
An artifact was found and tested for its carbon14 content. If 84% of the original carbon14 was still present, what is its probable age (to the nearest 100 years)? Use that carbon14 has a halflife of 5,730 years.

College Math
An artifact was found and tested for its carbon14 content. If 88% of the original carbon14 was still present, what is its probable age (to the nearest 100 years)? Use that carbon14 has a halflife of 5,730 years.

math
An artifact was found and tested for its carbon14 content. If 76% of the original carbon14 was still present, what is its probable age (to the nearest 100 years)? Use that carbon14 has a halflife of 5,730 years.

Algebra
An artifact was found and tested for its carbon14 content. If 77% of the original carbon14 was still present, what is its probable age (to the nearest 100 years)? Use that carbon14 has a halflife of 5,730 years.

algebra
An artifact was found and tested for its carbon14 content. If 79% of the original carbon14 was still present, what is its probable age (to the nearest 100 years)? Use that carbon14 has a halflife of 5,730 years.

Math
An artifact was found and tested for its carbon14 content. If 88% of the original carbon14 was still present, what is its probable age (to the nearest 100 years)? Use that carbon14 has a halflife of 5,730 years. ? yr

Algebra
An artifact was found and tested for its carbon14 content. If 76% of the original carbon14 was still present, what is its probable age (to the nearest 100 years)? (Carbon14 has a halflife of 5,730 years.)

math
An artifact was found and tested for its carbon14 content. If 76% of the original carbon14 was still present, what is its probable age (to the nearest 100 years)? (Carbon14 has a halflife of 5,730 years.)

Homework test
An artifact was found and tested for its carbon14 content. If 70% of the original carbon14 was still present, what is its probable age (to the nearest 100 years)? Use that carbon14 has a halflife of 5,730 years.

math
An artifact was found and tested for its carbon14 content. If 83% of the original carbon14 was still present, what is its probable age (to the nearest 100 years)? Use that carbon14 has a halflife of 5,730 years.

Algebra
An artifact was found and tested for its carbon14 content. If 75% of the original carbon14 was still present what is its probable age to the nearest 100 years?. carbon 14 has a halflife of 5,730 years.

math
An artifact was found and tested for its carbon14 content. If 83% of the original carbon14 was still present, what is its probable age (to the nearest 100 years)? Use that carbon14 has a halflife of 5,730 years.

Can some guide me
An artifact was found and tested for its carbon14 content. If 71% of the original carbon14 was still present, what is its probable age (to the nearest 100 years)? (Carbon14 has a halflife of 5,730 years.)

Algebra
An artifact was found and tested for its carbon14 content. If 74% of the orginal carbon14 was still present, what is its probable age (to the nearest 100 years)? (Carbon14 has a half life of 5730 years).

Chemistry
An artifact has a carbon14 to carbon12 ratio that is onefourth the carbon14 to carbon12 ratio of a similar modern object. How old is the artifact? (The halflife of carbon14 is 5,715 years.)

Calculus
An artifact was found with 63.8% of Carbon 14, how old is the mummy, assuming the halflife of Carbon 14 is 5730 years.

calculus
A wooden artifact recovered from a tomb contains 29% of the carbon14 that is present in living trees. The half life of carbon14 is 5730 years. How long ago was the artifact made?

Precalc
A wooden artifact from an ancient tomb contains 50 percent of the carbon14 that is present in living trees. How long ago, to the nearest year, was the artifact made? (The halflife of carbon14 is 5730 years.)

College Algebra
This exercise uses the radioactive decay model. A wooden artifact from an ancient tomb contains 80% of the carbon14 that is present in living trees. How long ago was the artifact made? (The halflife of carbon14 is 5730 years. Round your answer to the

biology
The answer to which of these scientific questions would MOST likely explain why all life on Earth is based on carbon? A. How many carbon isotopes are stable? B. How much carbon is found in Earth’s crust? C. What are the naturally occurring states of

physics
You are on an archaeological dig and discover a strange artifact. It is a utensil that appears to be carved out of an elephant's tusk You analyze it and discover that it has 0.625 the amount of carbon14 you would find in a living specimen. 1.How many

physics
You are at a archeological dig an discover a strange artifact. It is a utinsil tha appears to be carved out of an elephant's tusk You analyze it and discover that it has 0.625 the amount of carbon 14 you woul find in a living specimen. How many half lives

Physics
(a)A fossilised tree was tested and contains 10 grams of Carbon14. Given that there was 12 grams of Carbon14 present when it died, determine the age of the fossil? Half life of Carbon14 is 5700 years. (b)How much Carbon14 will be present in the sample

Physics
(a)A fossilised tree was tested and contains 10 grams of Carbon14. Given that there was 12 grams of Carbon14 present when it died, determine the age of the fossil? Half life of Carbon14 is 5700 years. (b)How much Carbon14 will be present in the sample

Intermediate Maths
(a)A fossilised tree was tested and contains 10 grams of Carbon14. Given that there was 12 grams of Carbon14 present when it died, determine the age of the fossil? Half life of Carbon14 is 5700 years. (b)How much Carbon14 will be present in the sample

Final Maths
(a)A fossilised tree was tested and contains 10 grams of Carbon14. Given that there was 12 grams of Carbon14 present when it died, determine the age of the fossil? Half life of Carbon14 is 5700 years. (b)How much Carbon14 will be present in the sample

College Math
Only 43% ofthe carbon14 in an artifact remains. How old is the artifact? Would the answer be less than the half life?

Chemistry
A piece of wood found in an ancient city has a carbon14 to carbon12 ratio that is oneeighth the carbon14 to carbon12 ratio of a tree growing nearby. How old is the piece of wood? (The halflife of carbon14 is 5,715 years.)

College Algebra
A wooden artifact from an ancient tomb contains 45% of the carbon14 that is present in living trees. How long ago, to the nearest year, was the artifact made

physics
before 1900 the activity per mass of atmospheric carbon due to the presence of carbon14 averaged about 0.255bq/g of carbon 1. what fraction of carbon is carbon14

physics
before 1900 the activity per mass of atmospheric carbon due to the presence of carbon14 averaged about 0.255bq/g of carbon 1. what fraction of carbon is carbon14

Chem 2 help
what is the significance of calculating the half life of a reaction? How has the concept of halflife been used to develop the method of carbon dating? If a substance does not contain the element carbon can the method of carbon dating be used to date the

Calculus Help Please!!! URGENT!!!!
Carbon14 has a halflife of 5700 years. In a living organism, the ratio of radioactive carbon14 to ordinary carbon remains fairly constant during the lifetime of the organism. After the organism’s death no new carbon is integrated into the organism’s

chemistry
"Carburization" of pure iron (Fe) is carried out at 950∘ C. It is desirable to achieve a carbon content of 0.9% at a depth of 0.1 mm below the surface. A constant supply of carbon at the surface maintains a surface concentration of 1.2%. Assuming the

Chemistry
Carburization" of pure iron (Fe) is carried out at 950∘ C. It is desirable to achieve a carbon content of 0.9% at a depth of 0.1 mm below the surface. A constant supply of carbon at the surface maintains a surface concentration of 1.2%. Assuming the

science
my teacher gave us this question and im lost. Anthropologists have found an old campsite in a remote location. After calculating the carbon14 in the wood, they determine that there is 1/8 of the original material left. How many halflives of carbon14

Chemistry
You wish to increase the carbon content of a slab of steel by exposing it to a carburizing atmosphere at elevated temperature. The carbon concentration in the steel before carburization is 235.0 ppm and is initially uniform through the thickness of the

physics
You wish to increase the carbon content of a slab of steel by exposing it to a carburizing atmosphere at elevated temperature. The carbon concentration in the steel before carburization is 206.5 ppm and is initially uniform through the thickness of the

science
You wish to increase the carbon content of a slab of steel by exposing it to a carburizing atmosphere at elevated temperature. The carbon concentration in the steel before carburization is 152.0 ppm and is initially uniform through the thickness of the

chemistry
i cant understand anything in carbon and its compounds. can you give me any the basics of what i need to learn in carbon and its compounds Carbon has a usual oxidation state(valence) of +4 and it can bond to itself. Therefore, there are millions of carbon

Radioactivity
1. A granite rock is thought to be about 2 billion years old. why is it not possible to determine the age of the Rock using carbon14 dating? 2. A hair sample has 80% of its original carbon14 present. what is the age of the sample? 3. A bone fragment has

can you help me with one science question Ms. Sue
3. How would the carbon cycle be affected if all producers were removed? (1 point) Carbon compounds in animals would not be broken down to release carbon dioxide back into the atmosphere. Carbon would not have a way to enter the bodies of living things.

Science
(Another question sorry!) Which of the following is true of carbon? A. Carbon is present in all organisms and in the atmosphere.** B. Carbon moves from consumers to producers. C. Carbon must be fixed by bacteria before other organisms can use it. D. Carbon

Science
Which of the following is true of carbon? A. Carbon is present in all organisms and the atmosphere** B. Carbon moves from consumers to producers C. Carbon must be fixed by bacteria before other organisms can use it D. Carbon can only be released from dead

chemistry
The radioactive decay of carbon14 is firstorder and the halflife is 5800 years. While a plant or animal is living, it has a constant proportion of carbon14 (relative to carbon12) in its composition. When the organism dies, the proportion of carbon14

Physical Science
Diamond is a covalently bonded substance made of pure carbon. Each carbon atom has six total electrons so this means carbon shares ________ electron(s) with other carbon atoms. A) one B) two C) four D) six Help Please!

Chemistry
to increase the carbon content of a slab of steel by exposing it to a carburizing atmosphere at elevated temperature. The carbon concentration in the steel before carburization is 200.5 ppm and is initially uniform through the thickness of the steel. The

chemistry
You wish to increase the carbon content of a slab of steel by exposing it to a carburizing atmosphere at elevated temperature. The carbon concentration in the steel before carburization is 176.0 ppm and is initially uniform through the thickness of the

chemistry
You wish to increase the carbon content of a slab of steel by exposing it to a carburizing atmosphere at elevated temperature. The carbon concentration in the steel before carburization is 490.5 ppm and is initially uniform through the thickness of the

Chemistry
You wish to increase the carbon content of a slab of steel by exposing it to a carburizing atmosphere at elevated temperature. The carbon concentration in the steel before carburization is 379.0 ppm and is initially uniform through the thickness of the

chemistry
You wish to increase the carbon content of a slab of steel by exposing it to a carburizing atmosphere at elevated temperature. The carbon concentration in the steel before carburization is 141.0 ppm and is initially uniform through the thickness of the

help
You wish to increase the carbon content of a slab of steel by exposing it to a carburizing atmosphere at elevated temperature. The carbon concentration in the steel before carburization is 478.5 ppm and is initially uniform through the thickness of the

chemistry
You wish to increase the carbon content of a slab of steel by exposing it to a carburizing atmosphere at elevated temperature. The carbon concentration in the steel before carburization is 165.0 ppm and is initially uniform through the thickness of the

chemistry
You wish to increase the carbon content of a slab of steel by exposing it to a carburizing atmosphere at elevated temperature. The carbon concentration in the steel before carburization is 165.0 ppm and is initially uniform through the thickness of the

Chemistry
You wish to increase the carbon content of a slab of steel by exposing it to a carburizing atmosphere at elevated temperature. The carbon concentration in the steel before carburization is 359.5 ppm and is initially uniform through the thickness of the

CHEMISTRY
You wish to increase the carbon content of a slab of steel by exposing it to a carburizing atmosphere at elevated temperature. The carbon concentration in the steel before carburization is 165.0 ppm and is initially uniform through the thickness of the

Chemistry
You wish to increase the carbon content of a slab of steel by exposing it to a carburizing atmosphere at elevated temperature. The carbon concentration in the steel before carburization is 211.5 ppm and is initially uniform through the thickness of the

Chemistry
You wish to increase the carbon content of a slab of steel by exposing it to a carburizing atmosphere at elevated temperature. The carbon concentration in the steel before carburization is 200.5 ppm and is initially uniform through the thickness of the

Chemistry
You wish to increase the carbon content of a slab of steel by exposing it to a carburizing atmosphere at elevated temperature. The carbon concentration in the steel before carburization is 193.5 ppm and is initially uniform through the thickness of the

Chemistry
You wish to increase the carbon content of a slab of steel by exposing it to a carburizing atmosphere at elevated temperature. The carbon concentration in the steel before carburization is 325.5 ppm and is initially uniform through the thickness of the

chemistry
You wish to increase the carbon content of a slab of steel by exposing it to a carburizing atmosphere at elevated temperature. The carbon concentration in the steel before carburization is 223.0 ppm and is initially uniform through the thickness of the

chemistry
You wish to increase the carbon content of a slab of steel by exposing it to a carburizing atmosphere at elevated temperature. The carbon concentration in the steel before carburization is 213.5 ppm and is initially uniform through the thickness of the

chemistry
You wish to increase the carbon content of a slab of steel by exposing it to a carburizing atmosphere at elevated temperature. The carbon concentration in the steel before carburization is 390.5 ppm and is initially uniform through the thickness of the

Chemistry
You wish to increase the carbon content of a slab of steel by exposing it to a carburizing atmosphere at elevated temperature. The carbon concentration in the steel before carburization is 359.5 ppm and is initially uniform through the thickness of the

chemistry
You wish to increase the carbon content of a slab of steel by exposing it to a carburizing atmosphere at elevated temperature. The carbon concentration in the steel before carburization is 244.5 ppm and is initially uniform through the thickness of the

chemistry
You wish to increase the carbon content of a slab of steel by exposing it to a carburizing atmosphere at elevated temperature. The carbon concentration in the steel before carburization is 263.5 ppm and is initially uniform through the thickness of the

Chemistry
You wish to increase the carbon content of a slab of steel by exposing it to a carburizing atmosphere at elevated temperature. The carbon concentration in the steel before carburization is 299.0 ppm and is initially uniform through the thickness of the

chemistry
You wish to increase the carbon content of a slab of steel by exposing it to a carburizing atmosphere at elevated temperature. The carbon concentration in the steel before carburization is 165.0 ppm and is initially uniform through the thickness of the

Chemistry help please
You wish to increase the carbon content of a slab of steel by exposing it to a carburizing atmosphere at elevated temperature. The carbon concentration in the steel before carburization is 359.5 ppm and is initially uniform through the thickness of the

chimistry
You wish to increase the carbon content of a slab of steel by exposing it to a carburizing atmosphere at elevated temperature. The carbon concentration in the steel before carburization is 100.0 ppm and is initially uniform through the thickness of the

Maths
May someone help me with my HW problem (b)? Radiocarbon dating can be used to estimate the age of material, such as animal bones or plant remains, that comes from a formerly living organism. When the organism dies, the amount of carbon14 in its remains

Chem URGENT!!
Which bond is most polar? FCl OP OS FF SiO Which species has the shortest carbon/oxygen bond? carbon monoxide carbon dioxide carbonate anion all carbon/oxygen bonds have same length Plz Help me with this....I need to see if I answered it right I put

pre calculus
The age of a document is in dispute, so archaeologists test for carbon14. Due to radioactive decay, the amount A of carbon 14 present compared to the initial amount A0 after t years is given by the formula A(t) = A0e^0.000124t . If 72% of the original