014 10.0 points A piece of charcoal used for cooking is found at the remains of an ancient campsite. A 1.06 kg sample of carbon from the wood has an activity of 1510 decays per minute. Find the age of the charcoal. Living mate rial has an activity of 15 decays/minute per gram of carbon present and the halflife of 14C is 5730 y. Answer in units of y