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HELP PLEASE
1. How old is the clothing found in the Egyptian pyramid?
2. Each shake represents a half-life for the pennies. What is the definition of a half-life?
3. About how many carbon-14 atoms from a sample of 800 C-14 atoms will remain after
2.0 half-lives? (Show your work)
4. About how many N-14 atoms will be present from a sample of 800 C-14 atoms after 2.0 half-lives? (Show your work)
5. 100 C-14 atoms remain from a sample of 1600 C-14 atoms.
a. How many half-lives have passed? (Show your work)
b. How much time has passed? The half life of C-14 is 5730 years (Show your work)
Each shake represents 5730 years that have passed.
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