Neptunium-237 has a half-life of 2.1 million years. The amount N of 400 kilograms of neptunium-237 present after t years is given by N = 400e−0.00000033007t. How much of the 400 kilograms will remain after 20,000 years? (Round your answer to two decimal places.)
Neptunium-237 has a half-life of 2.1 million years. The amount N of 400 kilograms of neptunium-237 present after t years is given by N = 400e−0.00000033007t. How much of the 400 kilograms will remain after 20,000 years? (Round your answer to two decimal places.)
Chapter10: Radioactivity And Nuclear Processes
Section: Chapter Questions
Problem 10.74E
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Neptunium-237 has a half-life of 2.1 million years. The amount N of 400 kilograms of neptunium-237 present after t years is given by
N = 400e−0.00000033007t.
How much of the 400 kilograms will remain after 20,000 years? (Round your answer to two decimal places.)
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