The half life of carbon-14 is 5730 years. How long will a certain amount of carbon - 14 decay by 90% of its original amount? 19035 years 871 years 15039 years O 977 years

Q: Radiocarbon C14 has a half-life of 5730 years. How many years will it take for 26%of a sample of C14…

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Q: The radioactive element​ carbon-14 has a​ half-life of 5750 years. A scientist determined that the…

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Q: Find the age of a fossil that has 1/4 of its carbon 14 remaining. (k= -0.00012). Round to the…

A: A=Pekt a fossil that has 1/4 of its carbon 14 remaining so take A=P4 and here k=-0.00012

Q: The​ half-life of radium is 1690 years. If 80 grams are present​ now, how much will be present in…

A: We have given the half life of radium is 1690 years.And the present amount of radium is 80 grams…

Q: If there were originally 500 grams of carbon-14 originally, how much carbon-14 would remain after 10…

A: In each half life , amount becomes half of the previous one. It means that, after each half life the…

Q: A sample of a newly discovered element, West Virginium, has a half-life of 425 years. How long will…

A: Given half life of element is 425 years t1/2. Initial weight A0 is 803 mg and after decay is 401.5…

Q: A scientist begins with 225 grams of a radioactive substance. After 300 minutes, the sample has…

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Q: The half-life of radium is 1690 years. If 40 grams are present now, how much will be present in 690…

A: Given: The half-life of radium is 1690 years. if 40grams are present now.

Q: A radioactive substance has a half-life of 29 years. What percent remains 80 years after being to…

A: We will find the remains after 80 years in percentage.

Q: A wooden artifact from an ancient tomb contains 45 percent of the carbon-14 that is present in…

A: A wooden artifact from an ancient tomb contains 45 percent of the carbon-14 that is present in…

Q: Given that the half-life of radium is 1690 years, how much in milligrams will remain of one gram of…

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Q: The half-life of radium is 1690 years. If 10 grams is present now, how much will be present in 100…

A: Half life of radium is 1690 years Present mass = 10 grams Mass at 100 years from now is to be…

Q: Suppose a sample of a certain substance decayed to 65.8% of its original amount after 300 days. (Ro…

A: Given that the substance decayed to 65.8% of its original amount after 300 days. (a) To determine…

Q: A wooden artifact from an ancient tomb contains 40 percent of the carbon-14 that is present in…

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Q: Use the exponential decay model, A = A0ekt, to solve. Round answers to one decimal place. The…

A: Let the exponential decay model be                           A=A∘ekt As given half-life of lead is…

Q: of a radiooctive substonce decayed to 93.5% of its original sample amount after oyear What is the…

A: we need find half life substance k=? and t=?

Q: A savings account paying 3% continuously compounded interest has $1600 after 8 years. How much was…

A: Please refer the attached image for complete solution.THANK YOU.

Q: A wooden artifact from an ancient tomb contains 55 percent of the carbon-14 that is present in…

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Q: Use the exponential decay model, A = A0ekt, to solve:The half-life of iodine-131 is 7.2 days. How…

A: given A=A0ekt half-life is 7.2 days

Q: What amount must be invested at 9% compounded continuously, so that it will be worth $35,000 after 5…

A: The total amount (A) obtained after t years by investing an initial amount of P in a firm or account…

Q: The half life of a certain isotope is 8.5 hours. If we have a sample of 10 ounces of that isotope,…

A: Consider the following information: Half life periodt12=8.5 hours Decay constantλ=ln2t12=ln28.5…

Q: A wooden artifact from an ancient tomb contains 55 percent of the carbon-14 that is present in…

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Q: The half-life of carbon-14 is 5,730 years. If there are 600 grams of carbon-14 in a tree when it is…

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Q: A wooden artifact from an ancient tomb contains 20 percent of the carbon-14 that is present in…

A: We have to find how long ago, to the nearest year, was the artifact made.

Q: Radiocarbon dating is effective on specimens up to​ 40,000 years old. In 1951​, a nuclear chemist…

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Q: A wooden artifact from an ancient tomb contains 50 percent of the carbon-14 that is present in…

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Q: A radioactive isotope, selenium, used in the creation of medical images of the pancreas, has a…

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Q: A wooden artifact from an ancient tomb contains 60 percent of the carbon-14 that is present in…

A: Given:-Carbon contains 60% of its initial value  First we find the vale of decay rate from half time…

Q: Find the half-life of an element which decays by 3.42% each day.

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Q: A wooden artifact from an ancient tomb contains 35 percent of the carbon-14 that is present in…

A: The question is exponential function based and we can identify it as we are given the half life. We…

Q: Suppose a sample of a certain substance decayed to 75.6% of its original amount after 300 days. (a)…

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Q: The half - life of Cobalt - 60 is 15 years. How much of an initial 105 g sample will remain after 33

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Q: A wooden artifact from an ancient tomb contains 40 percent of the carbon-14 that is present in…

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Q: Oganesseon 294 has an exponential decay rate of 38.51% per millisecond what is the half life

A: Let N(t) be the amount of Oganesseon 294 at time t. Exponential decay rate is:  r = 38.51%

Q: A wooden artifact from an ancient tomb contains 35 percent of the carbon-14 that is present in…

A: Radioactive decay

Q: Assume a substance has a half-life of 11 years and the initial amount is 133 grams.How much remains…

A: The amount left after t years can be calculated as

Q: How old is skeleton that has lost 55% of its carbon-14? The half-life of carbon-14 is 5700 years.…

A: Given that The half-life of carbon-14 is 5700 years To find How old is skeleton that has lost 55% of…

Q: The​ half-life of radium is 1690 years. If 40 grams are present​ now, how much will be present in…

A:

Q: An article on the "Iceman" stated that the frozen corpse was 5,000 to 5,500 years old. Assuming the…

A: Given data: The given time is t=5,200 years. The given half lifetime is t1/2=5,730. The expression…

Q: A sample of a radioactive substance decayed to 10% of its original amount after 30 years. What is…

A: Given After 30 years substance decayed to 10 % of its original amount

Q: The half life of radium is 1690years. If 59 grams are present now, how much will be present in 60…

A: Let A(t) be the amount remaining in t years, then

Q: alf-life of carbon-14 is 5600 years. If a piece of charcoal made from the wood of a tree shows only…

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Q: Human hair from a grave in Africa proved to have only 91% of the carbon 14 of living tissue. When…

A: Given:

Q: Use the exponential decay model, A = A0ekt, to solve. Round answers to one decimal place. The…

A: Given  we have to use  A = A0ekt The half life of thorium is 7340 years

Q: The half-life of Carbon-29 is 1300 years. If 15 grams are present now, how much will be present in…

A: Let A(t) be the amount of Carbon-29 remaining in t years, then

Q: The half life of radium is 1690 years. if 50 grams are present now,how much will be present in 520…

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Q: A wooden artifact from an ancient tomb contains 50 percent of the carbon-14 that is present in…

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Q: A wooden artifact from an archaeological dig contains 90 percent of the Carbon-14 that is present in…

A: Formula used:

Q: Only 40% of the carbon-14 in a wooden bowl remains. How old is the bowl (rounded to the nearest…

A: Consider the given informationRemaining amount of carban-14 = 40%Now The radioactive decay equation

Q: A sample of an isotope decayed to 77.3% of its original amount after one year. What is the half-life…

A: Radioactivity phenomena follow first kinetics: so,    Rate=kA1      k=constant by solving this…