Question

The half-life of radioactive strontium-90 is approximately 30 years. In 1961, radioactive strontium-90 was released into...

The half-life of radioactive strontium-90 is approximately 30 years. In 1961, radioactive strontium-90 was released into the atmosphere during testing of nuclear weapons, and was absorbed into people's bones. How many years does it take until only 8 percent of the original amount absorbed remains?

time = _______ years

Math   Calculus   
0 0
Add a commentTranscribed image text
Next >

Homework Answers

Answer #1

0 0
Know the answer?
Your Answer:

Post as a guest

Your Name:

What's your source?

Earn Coins

Coins can be redeemed for fabulous gifts.

Log In

Sign Up

Not the answer you're looking for?
Ask your own homework help question
Similar Questions
The half-life of radioactive strontium-90 is 29 years. In 1960, radioactive strontium-90 was released into the...
The half-life of radioactive strontium-90 is 29 years. In 1960, radioactive strontium-90 was released into the atmosphere during testing of nuclear weapons, and was absorbed into people's bones. a. Write down a function describing the amount of strontium-90 left in a person's bones, t years after the 1960 nuclear test. b. In what year will only 10% of the original amount absorbed by a person remains?
Strontium-90 (90Sr) is a radioactive isotope with a half-life of 28.8 years. What percentage of this...
Strontium-90 (90Sr) is a radioactive isotope with a half-life of 28.8 years. What percentage of this isotope remains after 11.4 years?
Strontium 38Sr90 has a half-life of 29.1 yr. It is chemically similar to calcium, enters the...
Strontium 38Sr90 has a half-life of 29.1 yr. It is chemically similar to calcium, enters the body through the food chain, and collects in the bones. Consequently, 38Sr90 is a particularly serious health hazard. How long (in years) will it take for 99.9352% of the 38Sr90 released in a nuclear reactor accident to disappear?
The half-life of a dangerous radionuclide, strontium-90, 90Sr, is 29 years. This isotope is produced during...
The half-life of a dangerous radionuclide, strontium-90, 90Sr, is 29 years. This isotope is produced during the nuclear fission reactions of atomic power reactors; if a receptor is compromised (at Chernobyl and Fukushima it happened) considerable amounts can be released. It has yet to be disclosed how much 90Sr was released at Fukushima (the authorities won't say, though perhaps they don't know), so let's just suppose 9.0 g (possibly a gross underestimate). a. Please find the rate constant for the...
strontium 90 is a radioactive material that decays according to the function A(t)=Aoe^0.0244t ,where So is...
strontium 90 is a radioactive material that decays according to the function A(t)=Aoe^0.0244t ,where So is the initial amount present and A is the amount present at time t (in year). assume that a scientist has a sample of 800 grams of strontium 90. a)what is the decay rate of strontium 90? b)how much strontium 90 is left after 10 years? c)when Will only 600 grams of strontium 90 be left? d)what is the half life of strontium 90?
Plutonium-239 can be used to make nuclear weapons and is found in nuclear waste, but radioactive...
Plutonium-239 can be used to make nuclear weapons and is found in nuclear waste, but radioactive waste from nuclear reactors contains large amounts of undesirable contaminants. Radioactive waste can be stored in deep geological storage. Over many years the fission products decay, decreasing the radioactivity of the waste. However, the undesirable contaminant Pu-240 decays faster than the Pu-239, and thus the quality of the bomb material increases with time. In order for weapons grade plutonium to be obtained the sample...
one of the radioactive materials released during the Fukishima disaster was cesium-134, cesium-134 has a half...
one of the radioactive materials released during the Fukishima disaster was cesium-134, cesium-134 has a half life of 2.1 years. How long will it take for this material to lose the following amount of it's radioactivity: A: 90% B: 99% C: 99.9%
By mass spectral analysis, a sample of strontium is known to contain 2.64x10^10 atoms of Sr-90...
By mass spectral analysis, a sample of strontium is known to contain 2.64x10^10 atoms of Sr-90 as the only radioactive element. The absolute disintegration rate of this sample is measured as 1238 disintegrations per minute. The half-life (in years) of Sr-90 was found to be 28.49. How long will it take (in years) for the disintegration rate of this sample to drop to 957 disintegrations per minute?
Radioactive Half-life Years Element A Remaining Radioactive Atoms Element B Remaining Radioactive Atoms Element C Remaining...
Radioactive Half-life Years Element A Remaining Radioactive Atoms Element B Remaining Radioactive Atoms Element C Remaining Radioactive Atoms Element D remaining Radioactive Atoms 0              100 100 100 100 1000 50 85 90 95 2000 25 72 81 90 3000 13 61 73 86 4000 6 52 66 81 5000 3 44 59 77 6000 2 38 53 74 7000 1 32 48 70 8000 0 27 43 66 9000 0 23 39 63 10000 0 20 35 60 11000...
The half-life of the radioactive material cesium-137 is 30 years. Suppose we have a 180-mg sample....
The half-life of the radioactive material cesium-137 is 30 years. Suppose we have a 180-mg sample. (a) Write a formula that gives the mass that remains after t years. (Round the relative growth rate to four decimal places.) A(t) =   (b) How much of the sample remains after 100 years? (Round your answer to two decimal places.) mg (c) After how long will only 1 mg remain? (Round your answer to one decimal place.) years (d) At what rate is...
ADVERTISEMENT
Need Online Homework Help?

Get Answers For Free
Most questions answered within 1 hours.

Ask a Question
ADVERTISEMENT