How long does it take until 5% of the isotope technetium-99m d) nains? Round to the nearest tenth of the hour.

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 wooden artifact from an ancient tomb contains 30 percent of the carbon-14 that is present in…

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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: By how much will the Pound depreciate in period 0? State your answer in the same units as e and to 2…

A: Given Data Money demand in UK MD/P=e(-0.5*i) *Y MS=M I=i_{US}+e^e-e M = 1100 Y = 1956 P = 1…

Q: The half life of a radioactive sample is 50 days. How much of a 800 mg sample remain after 1 year?…

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

A: Please refer to the image below

Q: Which is larger, 2 ln 5 or 3 ln 3? Explain

A: Given: 2ln5 & 3ln3 We know that, 2ln5=3.21887⇒2ln5=3.22And3ln3=3.29583⇒3ln3=3.29

Q: The half-life of a radloactive Isotope Is the time It takes for a quantity of the isotope to be…

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Q: Which is larger, 1/2 ln 16 or 1/3 ln 27? Explain

A: 12ln16=ln1612    ∵y·lnx=lnxy=ln4 & 13ln27=ln2713    ∵y·lnx=lnxy=ln3

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 a radioactive isotope is the time it takes for a quantity of the isotope to be…

A: For the solution follow the next step.

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

A:

Q: 1. If you have 100 grams of a radioactive isotope with a half-life of 10 years: a. How much of the…

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Q: In LMN AIN=12 teet, LN=11 eet and mZN=71 ind LM.

A: Given in △LMN                                    MN = 12 feet LN = 11 feet m∠N=71° LM = ?

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: 1. If 25% of a radioactive substance disappeared in 10 years, how long did it take for 60% of the…

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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 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: The half-life period of the isotope is 148 hours. The initial mass of an lodine isotope was 17 mg.…

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Q: The half-life of the radioactive element krypton-91 is 10 seconds. If 16 grams of Question…

A: Given: Half life of Krypton-91 = 10 seconds Initial amount of Krypton-91 = 16 gm We have to find how…

Q: The half life of a certain isotope is 6.13 hours. If we have a sample of 5.0 ounces of that isotope,…

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Q: In 100 yrs, 132mg of radium decomposes to 96mg. How many mg will be left after 200 yrs?

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

A:

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: 7. A bicycle with 26-inch diameter wheels is travelling at 10 miles per hour. To the nearest whole…

A: Given the diameter of the bicycle= 26 inch So, the radius of the bicycle = 26/2 = 13 inch =…

Q: The half-life of a radioactive isotope is the time it takes for a quantity of the isotope to be…

A: To calculate the amount of mass of after 6 half-lives if the initial amounts of radioactive isotopes…

Q: 10. OM = PN = ON = MN = *LN = 46

A: Given LN=46

Q: The half-life of plutonium-239 is 24,360 years. If 10 g of plutonium is released into the atmosphere…

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Q: The ratio of carbon-14 to carbon-12 in a piece of wood discovered in a cave is  R = 1/817.…

A: The carbon model is given by R=11012·e-t8223           ................[1] Given that:R=1817 put in…

Q: The isotope cesium-137 has a half-life of 29.75 years. How long will it take a 100 gram sample of…

A: Half life of isotope  cesium-137 = 29.75 years. The decay equation of cesium-137 is given by Let…

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

A: The solution is given below

Q: The frozen remains of a young Incan woman were discovered by archeologist Johan Reinhard on Mt.…

A: Given,The Body of the woman is found in year 1995.

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: 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: 1. The half-life of a radioactive material is 41.44 minutes. Starting with 840.7 grams of the…

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Q: 2. The half-life of a radioactive material is 22.52 hours. If you measure 88.95 grams of the sample…

A: Half-life is the time required for a quantity to reduce to half of its initial value. The term is…

Q: A certain radio isotope has a half-life of 12 years. Find the mass that remains from a 220mg sample…

A: Half life = 12 yrs 220 mg is the initial mass Therefore decay constant = ln2 / half- life

Q: An isotope has a half-life of 108 years. How much of a 16-gram sample is left after 250 years? .....…

A: The solution are next step

Q: The half-life of Cobalt-56 is 77.27 days. If a sample contains 460 mg, how many mg will remain after…

A: Half-lifeA=Ao. 12n whereA- The mass of the substance that remains Ao- Initial massn= ratio between…

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: If 16 g of a radioactive substance are present initially and 9 yr later only 8 g​ remain, how much…

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Q: If 16 g of a radioactive substance are present initially and 5 yr later only 8 g​ remain, how much…

A:

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: A radioactive isotope, selenium, used in the creation of medic has a half-life of 119.77 days. If…

A: In order to calculate the mass of selenium after 20 days, we need to use the formula of radio active…

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

A:

Q: A particular drug is eliminated from the blood with a half-life of 12 hours. If a person has 100 mg…

A: Given that: Initial amount= P0 = 100 mg Half time= H= 12 hours Time=t =6 hours Final amount=P…

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

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