Im having difficulty answering these questions. would be greatly appreciated.
1) assuming you start with 1 mci 52fe and no 52mmn, what will the activity of 52mmn be after 10 min? answer in mcimci.
2) what will be the activity in previous question after 20 minutes?
3) when will the activity of the sample be the highest, i. e. when is the best time to elute the sample?
4)over the weekend there is no one working to elute the sample. assuming you start with 1010 bq of 52fe and no 52mmn, what will the activity of 52mmn be after 48 hours?
5) what is the activity of the 52fe in question 4 at this point?

depends on what you mean by "group." for order, it would be coleoptera (beetles). for class, it would be insecta (insects). for phylum, it would be the arthropoda (animals with jointed exoskeletons).

explanation:

answer: at 24 february, 2014 the population gets twice of its initial population.

explanation:

since we have given that

the population for alpha city, t years after january 1, 2004 is given as

first we find out the initial population, i.e. t=0,

so, our quadratic equation becomes,

according to question, we have said that if the population has twice its initial population, then it becomes

so, time taken to reach this above mentioned population is given by

now, we know that time can't be negative so, we take t=9.149 years.

hence, at 24 february, 2014 the population gets twice of its initial population.