1. A wooden object is found in the ground and subjected to radiocarbon dating. The decay rate associated with C-14 is 10 disintegration/min per gram carbon. What is the age of the wooden object? 2. Co-60 is used extensively in a radiotheraphy source of y-rays with a half lofe of 5.27 years. A) How many years will it take to decrease to 35% of its original activity? B) If a Co source is 10 years old, what percent of its original activity remains?
1. A wooden object is found in the ground and subjected to radiocarbon dating. The decay rate associated with C-14 is 10 disintegration/min per gram carbon. What is the age of the wooden object? 2. Co-60 is used extensively in a radiotheraphy source of y-rays with a half lofe of 5.27 years. A) How many years will it take to decrease to 35% of its original activity? B) If a Co source is 10 years old, what percent of its original activity remains?
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1. A wooden object is found in the ground and subjected to radiocarbon dating. The decay rate associated with C-14 is 10 disintegration/min per gram carbon. What is the age of the wooden object?
2. Co-60 is used extensively in a radiotheraphy source of y-rays with a half lofe of 5.27 years.
A) How many years will it take to decrease to 35% of its original activity?
B) If a Co source is 10 years old, what percent of its original activity remains?
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