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How much of a radioactive substance remains after 10 hours if its half life is 5 hours?
After 10 hours, 25% of the radioactive substance remains because each half-life reduces the amount by half. So, after the first 5 hours, 50% remains, and after the next 5 hours, half of that amount remains, which is 25%.
Does gravity decrease to one fourth its original value if the distance between 2 objects is doubled?
No, gravity follows an inverse square law, which means that if the distance between two objects is doubled, the gravitational force between them decreases to one fourth its original value.
What is the fourth subatomic particle?
The fourth subatomic particle is the neutrino. Neutrinos are neutral and extremely light particles that interact weakly with matter, making them difficult to detect. They are produced in various nuclear reactions and play a role in processes like radioactive decay and fusion in the Sun.
How many grams are in a fourth?
There are 0.25 grams in a fourth (1/4) of a whole unit.
What happens to the electric force if you double the distance between two objects?
The electric force between two objects decreases to one-fourth of the original force if the distance between them is doubled. This is because the electric force is inversely proportional to the square of the distance between the charges.
How much of an original isotope remains at the end of a second half-life?
At the end of a second half-life, one-fourth (25%) of the original isotope remains. This is because each half-life halves the amount of the isotope present.
What is the half life of a radioactive isotope if it takes 6.2 days for a 72 gram sample to decay to 18grams?
18 grams are one fourth of the original sample mass of 72 grams. Accordingly, the half life is 6.2/4 = 1.55 days.
After 4 half-lives what percent of the radioactive isotope is remaining?
Every two years half of the parent (the original) isotope decays into the daughter isotope. Therefore, after just two years, 50% of the parent isotope will remain. In another half life (two years), half of that 50% will remain. Therefore, in four years two half lives have passed and 25% of the parent isotope remains.
What fraction of a radioactive sample remains after one half-life?
Half of the original sample of a radio isotope remains after a half-life period. After two half-life periods, one-fourth of the radio isotope remains.
Is radioactivity a gas?
Some gases are radioactive, however, there are many solids that are also radioactive, like Uranium and Plutonium. Another source of radioactivity is liquids, produced as a byproduct from atomic power plants. A fourth class of radioactive material are aerosols, which are composed of radioisotopes.
Determine the amount of time it takes for three fourths of a radioactive sample of an isotope to decay?
The half-life is 4 days. That means half of it will be gone in 4 days, and that leaves half of the original sample. In another 4 days, half of the remaining half will have decayed. And that will leave only 1/4 th of the original sample. That means 3/4 ths of the original sample will have decayed. In 8 days, three fourths of a sample of a radioactive element with a half-life of 4 days will have decayed.
What are the ratings and certificates for The Fourth Wish - 1974?
The Fourth Wish - 1974 is rated/received certificates of: Australia:PG (original rating)
How much of a radioactive substance remains after 10 hours if its half life is 5 hours?
After 10 hours, 25% of the radioactive substance remains because each half-life reduces the amount by half. So, after the first 5 hours, 50% remains, and after the next 5 hours, half of that amount remains, which is 25%.
One quarter of you is ten meters?
1 quarter is equal to one fourth of the original height. therfor, 10 meters is a fourth of 40 meters.
What century did the original Saint Nicholas exist?
He was born in the third century and died in the fourth.
WHERE were the original 3 musketeers?
Athos, Porthos and Aramis, Dartangnon was the fourth
Who is the fourth warrior cat?
The fourth series is called "Omen Of The Stars" And The first book is called "The Fourth Apprentice"
