2. A girl on a bike is accelerating at a rate of 5 m/s2 and has a total mass of 60 kg. How much force is the girl applying to her bike to move at this rate? *

Radon-222 or rn-222 has a half-life of 3.82 days. to determine the fraction of an original sample of rn-222 that remains unchanged after 7.646 days, we calculate the amount of rn-222 remaining after 7.646 days and divide it with the original amount. using 1 gram as a basis and using half-life calculation methods, we can determine that  0.249 or 0.25  grams of rn-222 will remain, and thus the fraction remaining is 0.25 or 1/4.

Yes it i’m going sorry about i️i️ is your a way

The answer is sucrose.