0
Add your answer:
Earn +20 pts
What fraction of U-238 atoms present at 1 half-life remain after 2 half-lives?
1/2 (50%) of them.
Is taking one half of a number the same as dividing the number by one half?
No. Taking one half of a number is the same as dividing it by 2. If you divide a number by 1/2 that's the same as multiplying it by 2.
Half of 0.3?
Half of 0.3 is 0.15. You would find that by taking 0.3 and dividing by 2.
What is half a 1.20?
Half of 1.20 is 0.60
Can you show how one half of five is four?
Five>iv=4 half of five is iv or taking 2 letter away. IV is 4 in romen numerals
How much thorium-234 will remain after 2 half lives?
After 2 half-lives, 25% of the original amount of thorium-234 will remain. This is because half of the substance decays in each half-life period.
After three half-lives what fraction of a radioactive sample will remain?
Approx 1/8 will remain.
How many unchanges atoms would remain after 3 half lives if the initial sample had 600 unchanged atoms?
After 3 half-lives, half of the original sample would remain unchanged. After the 1st half-life: 300 unchanged atoms. After the 2nd half-life: 150 unchanged atoms. After the 3rd half-life: 75 unchanged atoms would remain.
Which Eureka upright vacuum is the lightest in weight?
The Eureka 431BXZ Optima Lightweigh Upright Vacuum Cleaner is the lightest in weight. It is only 11 pounds which is half the weight of most other uprights.
Is taking half of a number is the same as dividing by half?
yes
Is there a movie editor that will let you fade half the screen and have the other half remain?
Yeah Called League Of Legends dawg
How many mL remain if 2.4 L is cut in half?
Half of 2.4 L given in mL is 1200 mL
A radioactive substance has has life of 5 days initial mass of 12kg how much the original isotope will remain after 10 days?
After 10 days, 1/2 of the original isotope will remain since its half-life is 5 days. This means 6kg of the original isotope will remain after 1 half-life, which remains the same after 10 days since another half-life has passed.
Did religious values remain strong in the second half of the 19th century?
Yes
What fraction of U-238 atoms present at 1 half-life remain after 2 half-lives?
1/2 (50%) of them.
What percentage of a radioactive element will remain after seven half lives?
After seven half lives, approximately 0.78125% (1/2^7) of the original radioactive element will remain. This can be calculated by repeatedly halving the remaining amount after each half life.
Is taking one half of a number the same as dividing the number by one half?
No. Taking one half of a number is the same as dividing it by 2. If you divide a number by 1/2 that's the same as multiplying it by 2.
