<h3>Answer:</h3>
The <em><u>time </u></em><em><u>duration </u></em>is the difference between two times.
<h3>Hope it helps..</h3>
ray4918 here to help..
Answer:
Option B. 32 g
Explanation:
From the question given above, the following data were obtained:
Original amount (N₀) = 128 g
Half-life (t½) = 2.25 billion years
Number of half-lives (n) = 2
Amount remaining (N) =?
The amount of 128 gram of Radium-226 that will remain after 2 half-lives has elapsed can be obtained as followb
N = 1/2ⁿ × N₀
N = 1/2² × 128
N = 1/4 × 128
N = 0.25 × 128
N = 32 g
Therefore, 32g of the sample will remain.
I don’t know what’s up with chin man ??
A. Using a combination lens made up of lenses, each of which has a different index of refraction. Is the correct answer.
