If the half-life of a radioisotope is 20,000 years, then a sample in which three-quarters of that radioisotope has decayed is __
_________ years old
1 answer:
25% remaining = 40,000 years old
You might be interested in
Just look it up on goog^le or a chart
Answer:
T2 = 51.6°C
Explanation:
Given:
P1 = 1.01 atm
T1 = 25°C + 273 = 298K
P2 = 1.10 atm
T2 = ?
P1/T1 = P2/T2
Solving for T2,
T2 = (P2/P1)T1
= (1.10 atm/1.01 atm)(298K)
= 324.6 K
= 51.6°C
where Tc = Tk - 273
Answer:
I'm thinking Henri's wave and Geri's wave have the same amplitude and energy, but i'm not %100 sure
Explanation:
9.9%
|Approximate Value − Exact Value| divided by
|Exact Value| X 100
