The teacher uses it and the kids use it to so that they learn how and go along with the teacher hope this helps!
what u have is great i think u should keep it that way! :) :):):):):):)
If the half-life is 5 minutes, then 30 minutes is equivalent to 6 half-lives. So, after six successive half-lives, the 400 mg of the radioisotope would have a mass of 400(0.5)⁶ = 6.25 mg.
Thus, A would be the correct answer choice here.
<span>The Indian Ocean Trade began with small trading settlements around 800 A.D., and declined in the 1500’s when Portugal invaded and tried to run the trade for its own profit.</span>
A. He has a strong work ethic. Ordinance plays well into specific tasks.
