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What is the percentage of radioactive nuclei left after 3 half-lives have passed?
Wiki User
∙ 13y ago
12.5%
Wiki User
∙ 13y ago
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8 out of 32 students failed a testwhat percentage passed the test?
the answer is 75 0/0 Source: I was on a game and I guessed 75 and then It said I was correct
In an examination 70 percent of the candidates passed in English 65 percent passed in Mathematics and 27 percent failed in both subjects What is the pass percentage?
Answer:100% (all students who took the test).Since 27% failed in both, then 73% are remained to be discussed.Since 70% passed in English, 65% passed in Math and 27% failed in both,Then, failed in English = (100% - 70%) = 30%.Failed only in English = 30% - 27% = 3%.Failed in Math = (100% - 65%) = 35%.Failed only in Math = 35% - 27% = 8%.So total % of students failed = failed in both subjects + failed in English only + failed in Math only = 27% + 3% + 8%= 38%.So passed in both subjects = 100% - 38% = 62%.Answer: In that exam 62% passed in both subjects.
If 30 students took an exam and 10 of them failed what percent of them passed?
20%
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currently Nigahiga is #1 with over 2,000,000 subscribers. Fred used to be but now nigahiga passed him
How do you get passed the sixth floor on 100 Floors?
Press the 3 buttons on the door (with the jagged edges) and the last button behind the plant on the right. See related link for screenshots.
Does nuclear radiation go away?
No, it doesn't.Wrong, it does. There are 2 types of nuclear radiation: prompt & decay.Prompt nuclear radiation occurs for a period of time while the reaction that generates it is happening. Examples are the flash of neutrons, light, x-rays, etc. when a nuclear bomb explodes as well as the sustained neutron flux as a nuclear reactor is in operation. When the reaction stops, prompt nuclear radiation goes away.Decay nuclear radiation occurs as radioactive isotopes decay to different isotopes. As the decay happens (which is a probabilistic process) the radioactive isotope is consumed. This follows an exponential function with one half of the current amount of the radioactive isotope consumed in each period of time called a halflife. While there will always be a tiny residue of the original radioactive isotope, for practical purposes it is considered to be negligible after 5 halflives have passed. When 5 halflives of the radioactive isotope decaying have passed, decay nuclear radiation is considered to have gone away for practical purposes.
What is the percentage of radioactive nuclei left after 3 half lives have passed?
12.5%
What is Minimum percentage in graduation in ignou bed?
No Bar Of percentage. But passed with a graduation degree
What are the percentage of people who passed the bece 2011?
90.23 candidates passed in the 2011 bece examinations
What percentage have passed if 12 have failed out of 33?
64%
What is the symbolism of a radioactive tattoo?
It all depends on the person getting it. I plan on getting this and to me it means that I contain radioactive thoughts. Or that I am a toxic person; I have done my wrongs and have bad habits, therefore they may be passed on.
How many half-lives have passed for 50 percent of the original radioactive material?
One half-life.
I had 13 students pass out of 19 students what percentage passed?
% of students who passed = 13/19 * 100% = 68.42%
Are radioactive elements should be eliminated on earth?
Definitely. They are dangerous to us. A law must be passed to get rid of them and protect us.
Why is half life a radioisotope important for radioactive dating?
the half life forms a type of clock used to calculate time passed
How is genetic information passed from one generation to the next?
So when there id fertilisation the genetic information is passed on through the parents to the offspring because the two cells fuse so does the nuclei with the two halves of genetic information.
What is the dle result of symbol no 68115?
position- Percentage-73.56 Status-passed
