The half-life of the radioactive element unobtanium-31 is 5 seconds. If 176 grams of unobtanium-31 are initially present, how many grams are present after 5 seconds? 10 seconds? 15 seconds? 20 seconds? 25 seconds? The amount left after 5 seconds is grams.

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

A: To determine the time taken for 100 gram sample of cesium-137 to decay to 75 grams.

Q: The current population of a threatened animal species is 1.4 million but it is declining with a…

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Q: The half-life of the radioactive element unobtanium-29 is 20 seconds. If 80 grams of unobtanium-29…

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Q: The half-life of the radioactive element unobtanium-29 is 10 seconds. If 80 grams of unobtanium-29…

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

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Q: In the early 1960s, radioactive strontium-90 was released during atmospheric testing of nuclear…

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Q: After the release of radioactive material into the atmosphere from a nuclear power plant in a…

A: Given that  To find the how long did the farmers need to wait to use this hay

Q: Suppose a particular antibiotic that is introduced to a petri dish containing 3000 newly discovered…

A: Introduction: Recurrence relation is very important in discrete mathematics. It relates a term with…

Q: Suppose Elizabeth takes a 700 mg dose of ibuprofen and every hour that passes the amount of…

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Q: The half-life of a drug in the bloodstream is 18 hours. if a 1000 mg dose is prescribed, what amount…

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Q: The half life of a radioactive substance is 20 years. If you start with some amount of this…

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Q: The current population of a threatened animal species is 1.7 million, but it is declining with a…

A: Given:  The current population of a threatened animal species is 1.7 million, but it is declining…

Q: The half-life of radioactive cobalt is 5.27 years. If 100 grams of radioactive cobalt is present…

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

A: Given: The half-life of the radioactive element krypton-91 is 10 seconds.

Q: The half-life of carbon-14 is known to be 5720 years. Doctor Frankenstein has 300 grams of…

A: From the given data:

Q: The half-life of a radioactive kind of uranium is 2 years. If you start with 5,712 grams of it, how…

A: According to question given that The half life of a radioactive kind of uranium is = 2 years A0=5712…

Q: After the release of radioactive material into the atmosphere from a nuclear power plant atChernobyl…

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Q: A radioactive material decomposes half of its amount per minute. If after 2 mins, 100% undecayed…

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Q: Lead-210 has a half-life of 22.3 years. How much of a 102-mg sample would be remaining after 6 years

A: To solve such problem we use the following two equations K=0.693t12 N=N0e−Kt Given that T12=22.3…

Q: A population of 10 hamsters will triple every year. What will be the population after 7 years?…

A: Given: A population of 10 hamsters will triple every year…

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

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Q: Nobelium is a radioactive isotope that has 25 seconds half-life. How long will it take for Nobelium…

A: The formula to calculate the amount of radioactive isotope is N=Noe-λt where N is the rest amount No…

Q: Polonium -210 is a radioactive substance with a halflife of 138 days. if a nuclear facility is…

A: Given: Half life of polonium 210  = 138 days Initial quantity = 245 gms

Q: The half life of a drug in the bloodstream is 9 hours. What fraction of the original drug dose…

A: After 9 hours, half is left After a SECOND 9 hours (18 total), half of a half, or, one quarter is…

Q: There are 6,000 cases of Coronavirus in Hong Kong. If Coronavirus cases increase at a rate of 3% per…

A: according to question number of Coronavirus cases after n days is=6000(1+3100)n =6000(1.03)n

Q: After the release of radioactive material into the atmosphere from a nuclear power plant in a…

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Q: The half-life of radioactive radium (226Ra) is 1599 years. What percent of a present amount of…

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

A: Since you have asked multiple questions, we will solve the first question for you. If you want any…

Q: The​ half-life of the radioactive element unobtainium-47 is 20 seconds. If 80 grams of…

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Q: The half-life of radioactive strontium-90 is approximately 29 years. In 1965, radioactive…

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Q: The​ half-life of a radioactive substance is 25 years. If you start with some amount of this​…

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Q: The half-life of a medication prescribed by a doctor is 6 hours. How many mg of this medication is…

A: The medicine is decaying exponentially. Use the half-life formula to calculate the medicine left…

Q: When a petroland oil well was first brought on line, it produced 1,900 barrels of crude oil a day.…

A: Petrol and oil well produced  In the first year , production is 1900 barrels of crude oil per day.…

Q: The half-life of the radioactive element unobtanium-59 is 20 seconds. If 32 grams of unobtanium-59…

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Q: The​ half-life of a radioactive substance is 20 years. If you start with some amount of this​…

A: Given Half life of a radioactive substance is 20 years

Q: The​ half-life of caffeine in a​ person's bloodstream is about 6 hours. If a​ person's bloodstream…

A: The formula for half-life:

Q: How much of a 102-mg sample would be remaining after 7 years? b) If the half-life were shorter than…

A: In this question, we use the application of differential equation to calculate the amount of lead…

Q: The current population of a threatened animal species is 1.7million, but it is declining with a​…

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Q: The half-life of Radium-226 is 1590 years. If a sample contains 100 mg, how many mg will remain…

A: Given half life =1590 years t0=100, time =0t1=50, time =1590t2=25, time = 2(1590)t3=12.5, time =…

Q: If 50 grams of a radioactive substance decomposed to 42 grams in 2 years, then, to the nearest gram…

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Q: How many times more energy does a 450-nm blue photon have than a 656-nm red photon?  answer to three…

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Q: The half-life of radioactive strontium-90 is approximately 27 years. In 1963, radioactive…

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Q: The half-life of Sodium-24 is 14.96 hours. If a sample contains 490 mg, how many mg will remain…

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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: there were 60 grams of carbon-14 initially, how many grams would be remaining after 12 half-lives?

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

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Q: Element X decays radioactively with a half life of 9 minutes. If there are 760 grams of Element X,…

A: Formula for half life is as below : N(t)=19 gramsN0=760t = ?t12=9 minutes

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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Differential Equations

Have you ever observed the movement of the satellites and rockets or how the planets go around the sun in their orbits? How will you determine their motion? Definitely they follow some scientific laws and these kinds of problems are framed as differential equations.