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: Thorium-228 is a radioactive substance that decays 50% every 1.9 years. How much of a 50 gram sample…

A: Given query is to find the amount remaining after 22.8 years.

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

A: The formula to find the amount of remaining radioactive material is given by the expression: An =…

Q: The radioactive substance neptunium-139 decays to 73.64% of its original amount after 24 hours. How…

A: Given that, in 24 hours, 73.64% of its original amount decays. So, in 24 years, 100-73.64=26.36% of…

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

A:

Q: Forty grams of a certain radioactive material disintegrates to 16 grams in 220 years. How much of…

A: Radioactive material follows first order kinetics equation - k = 1tlnA0AA0 = Initial amount = 40 gmA…

Q: 4) Use the situation to answer the question. Iodine-131 has a half-life of 8 days. How much of the…

A:

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

A:

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

A:

Q: Carbon-14 is used for archaeological carbon dating. Its half-life is 5,730 years. How many grams of…

A: Half life of Carbon-14 = 5,730 yearsInitial amount of sample = 700 grams

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

A:

Q: There are initially 340 cells present in a colony of bacteria. This strain of bacteria grows by 22%…

A: The exponential growth model is Population at time Initial amountGrowth rateTime in years

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.