Physics, 08.06.2021 07:20 juliannabartra

Testing shows that a sample of wood from an artifact contains 50% of the original amount of carbon-14. Given that the half-life of carbon-14 is 5730 years, how old is the artifact?
A. 22,920 years
B. 11,460 years
C. 5730 years
D. 2865 years

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it may be wrong but i think its a

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b. lifting dumbbell weight at 20-degree angle from the body after a 45-degree angle

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