A piece of wood from an ancient artifact has a carbon-14 activity of 11.7 disintegrations per min. per gram of carbon. Current carbon-14 activity in fresh samples is 15.3 disintegrations per min. per grams of carbon. The half-life of carbon is 5730 yrs. Calculate the age of the wood sample.

24. A sample of scotch whiskey is suspected of being counterfeit. The label claims it is 12 old, but there is a suspicion of fraud, so a sample of the whiskey is tested. A modern sample of unaged whiskey is tested for tritium (H-3), and it is found that 1.00 grams of the whiskey produces beta particles at a rate of 234.3 counts per minute. A 1.00 gram sample of the suspect whiskey gives a count of 193.2 counts per minute. Given that the half-life of tritium is 12.3 years, how old is the suspect whiskey? years

A 1.800 gram sample of carbon taken from an artifact found in cave has a carbon-14 activity of 10.80 decays/min. The activity of C-14 from living material is 15.2 decays/min per gram of carbon. Determine the age of the artifact.

Carbon-14 has a half-life of 5730 yr. A living organism has an activity of 15.2 counts per minute (cpm) per gram of carbon. If a bone is determined to have an activity of 11.1 cpm per gram of carbon, how old is the bone in the unit of years? Please report an integer.