Answer:
325.5 i think
Step-by-step explanation:
Answer:
- <u>59.0891 g (rounded to 4 decimal places)</u>
Explanation:
<em>Half-life time</em> of a radioactive substance is the time for half of the substance to decay.
Thus, the amount of the radioactive substance that remains after a number n of half-lives is given by:
Where:
- A is the amount that remains of the substance after n half-lives have elapses, and
- A₀ is the starting amount of the substance.
In this problem, you have that the half-live for your sample (polonium-210) is 138 days and the number of days elapsed is 330 days. Thus, the number of half-lives elapsed is:
- 330 days / 138 days = 2.3913
Therefore, the amount of polonium-210 that will be left in 330 days is:
Answer:
nothing
Step-by-step explanation:
You get nothing because it would make -43256742984
He drove 178 miles in the afternoon. 248-70=178
<span>This simply means that your actual tax was 3750 because the total withheld - the refund. A tax refund is not an extra money earned by a person, it is actual an excess of what was paid by the person that the IRS have decided to give back to that person.Taxes are usually deducted based on information declared in Form W-4. The yardstick used by IRS is a straightforward method to lessen your assessable wage, yet you have the choice to ascertain your own ordered findings, utilising your genuine deductible costs.</span>