Mathematics, 25.02.2020 20:47 rakanmadi87
The half-life of helium-5 is 7.6 × 10-22 seconds, and the half-life of helium-9 is 7 × 10-21 seconds. Approximately how many times greater is the half-life of helium-9 than that of helium-5?
A.
2 times
B.
7 times
C.
9 times
D.
11 times
Answers: 3
Mathematics, 21.06.2019 19:00
Acomputer store bought a program at a cost of $10 and sold it for $13. find the percent markup
Answers: 1
Mathematics, 21.06.2019 22:00
If abcde is reflected over the x-axis and then translated 3 units left, what are the new coordinates d?
Answers: 3
Mathematics, 22.06.2019 00:30
What is the area of the parallelogram? 48 sqrt(3)cm2 48 cm2 24 sqrt (3) cm2 24 cm2
Answers: 2
The half-life of helium-5 is 7.6 × 10-22 seconds, and the half-life of helium-9 is 7 × 10-21 seconds...
Biology, 24.04.2021 01:00
Mathematics, 24.04.2021 01:00
Chemistry, 24.04.2021 01:00
Mathematics, 24.04.2021 01:00
Business, 24.04.2021 01:00
French, 24.04.2021 01:00
English, 24.04.2021 01:00
Mathematics, 24.04.2021 01:00
Mathematics, 24.04.2021 01:00
Spanish, 24.04.2021 01:00