Ask a New Question

there are 500g of cobalt to 60 that has a half life of 5years ,how many grams of cobalt are remained after 15years

1 answer

Three half lives

500 * 1/2 * 1/2 * 1/2

= 500/8 grams

Ask a New Question or answer this question.

Similar Questions

The amount of a radioactive substance remaining after t years is given by the function , where m is the initial mass and h is
1. 1 answer
how much cobalt-60 remains 15 years after it is initially made?cobalt-60 has half life 5.27
1. 0 answers
Cobalt‑60 is subject to radioactive decay, and each year the amount present is reduced by 12.3%.The amount of cobalt‑60
1. 1 answer
the mass of cobalt-60 in a sample is found to have decreased from 0.800g to 0.200g in a period of 10.5 years. from this info
1. 1 answer

more similar questions