half-life of radium is 1690 years. If 90 grams are present now, how much will be present in 9 grams o not round until the final answer. Then round to the nearest thousandth as needed.)

Q: Suppose a scientist has a fossil sample with 140 g (grams) of carbon-14. If its original amount of…

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Q: An artifact was found and tested for its carbon-14 content. If 70% of the original carbon-14 was…

A: Concept Used: The general exponential dacay function is Pt=P0·ekt Given that half life is 5730 .…

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 100 mg of radium is reduced to 90 mg of radium in 200 years determine how much radium will remain…

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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: An element with mass 730 grams decays by 27.6% per minute. How much of the element is remaining…

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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: The half-life of Radium-226 is 1590 years. If a sample contains 200 mg, how many mg will remain…

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Q: An artifact was found and tested for its carbon-14 content. If 70% of the original carbon-14 was…

A: Recall the radioactive decay formula as follows. A=A02-thA is the final amountA0 is the initial…

Q: Ask The population of Northern Cascadia is growing at a rate of 20% every 3 years. Assuming that it…

A:

Q: A certain radioactive substance decays by 1.1% each year. Find the half-life of the substance, to 2…

A: Solution:-

Q: In the Question it ask, The half-life of Radium-226 is 1590 years. If a sample contains 100 mg, how…

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Q: The half-life of radium is 1690 years. If 30 grams are present now, how much will be present in 140…

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Q: The half-life of radium is 1690 years. If 80 grams are present now, how much will be present in 710…

A: Formula for decay A(t)= Aoekt Given Ao=80

Q: The half-life of radium is 1690 years. If 30 grams are present now, how much will be present in 570…

A: We have to finds the remaining amount

Q: A sample of radioactive material decayed to half of its original amount in 4 years. How long did it…

A: Given: A sample of radioactive material decayed to half of its original amount in 4 years To…

Q: Determine the half-life of a particular element if 200gr of that element decays to 15 gr in 12…

A: Given: 200 gr of an element decays to 15 gr in 12 hrs. To find: Half-life of an element.

Q: Suppose that $1,000 is invested at 5% interest compounded continuously. Use the formula A = Pert.…

A: It is given that $1,000 is invested at 5% interest compounded continuously. That is, P=1000,r=5%.…

Q: Find the half-life (to the nearest year) of krypton if  r = −0.0641.

A: Given,              r = −0.0641

Q: The half-life of Radium-226 is 1590 years. If a sample contains 500 mg, how many mg will remain…

A: Given: The half-life of Radium -226 is 1590 years.  Sample  = 500 mg  To find: How many mg will…

Q: The half-life of radium is 1690 years. If 80 grams are present now, how much will be present in 360…

A: Given query is to find the amount remaining after 360 years.

Q: The half-life of radium-225 is approximately 14.9 days. How much of a 15 gram sample of radium-225…

A:

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

A: Given: The half-life of carbon-14 is 5600 years. If a piece of charcoal is made from the wood of a…

Q: The radioactive element Carbon-14 has a half-life of approximately 5730 years. A fossil is measured…

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Q: An isotope has a half-life of 98 years. How much of a 16-gram sample is left after 150 years?

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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 50…

A:

Q: An Egyptian papyrus is discovered and it is found that the ratio of 14C to 12C is 65% of the known…

A:

Q: What is the ln of 1/time if the time is 359.4 seconds?

A: SOLUTION:-

Q: The half-life of silicon-32 is 710 years. If 70 grams is present now, how much will be present in…

A: The equation governing mass at any time t will be: m(t) = m0e-kt where k = 0.693 / t1/2 = 0.693 /…

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

A: The half life is 5750 years. Amount of carbon-14 lost is 28%.

Q: An

A: Given,element with mass = 510 gramsdecay rate = 26.3% per minuteour aim is to find how much of the…

Q: The half-life of radium-225 is approximately 14.9 days. How much of a 15 gram sample of radium-225…

A:

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

A:

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: How much money must be invested now at 10% interest compounded continuously so that $120, 000 will…

A:

Q: If 14 g of a radioactive substance are present initially and 8 yr later only 7 g​ remain, how much…

A:

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

A:

Q: An element with mass 310 grams decays by 8.9% per minute. How much of the element is remaining after…

A: Given   mass = 310 gm  Rate = 8.9 %  Time = 19 min

Q: A sample of a newly discovered element, West Virginium, has been discovered. A 648 mg sample has…

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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 radioactive substance has a half-life of 25 years. If 640 grams of the substance are present…

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Q: 2. Half-life of a DNA of an extinct moa is 521 years. A 1 mg sample was estimated to be 6000 years…

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Q: An element with mass 490 grams decays 28.6% per minute. How much of the element is remaining after…

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Q: The half-life of radium is 1690 years. If 50 grams are present now, how much will be present in 580…

A: Since it is given that half-life of radium is 1690 years.Our aim is to calculate that how much…

Q: The half-life of radium is 1690 years. If 80 grams are present now, how much will be present in 240…

A:

Q: The half-life of radium is 1690 years. If 90 grams are present now, how much will be present in 370…

A:

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

A:

Q: The half-life of radium is 1690 years. If 150 grams is present now, how long (to the nearest year)…

A: The half-life of radium is 1690 years. If 150 grams is present now, how long (to the nearest year)…