315 / 9 = 35
35 feet per second
The half-life of Po is 139 days, so its decay rate is
0.5 = e^(139k) ==> k = ln(0.5)/139
After some time t, 80% of the material will have decayed and you'll be left with a sample 20% of its original mass:
0.2 = e^(kt) ==> t = ln(0.2)/k = ln(0.2)/ln(0.5) * 139 = 322.748
so your sample is usable for about 323 days.
575 calories.
2 slices is 230, so one is 115. 115*5 is 575.
Answer: 46738294738290748392074893021748930217849032784932017483920174839021784930271849032718904372819047389210748390217489302174893021784930217849302174839021784937894073289147384738473847387483748374384750
Step-by-step explanation:
Answer:
1 iteration: x =
5/4
2 iteration: x =
11/8
3 iteration: x =
21/16
Step-by-step explanation:
Hope this helps!
