7. Traces of burned wood along with ancient stone tools in an archeological dig in Chile were found to contain approximately 1.67% of the original amount of carbon 14. If the half- life of carbon 14 is 5730 years, approximately when was the tree cut and burned?

Q: A rectangular prism has a base that measures 5 centimeters by 3 centimeters and a height of 2…

A: Given that: Base of rectangular prism=5cmX3cm                     Height of rectangular prism, h=2cm…

Q: 1. You find a skull in a nearby tribe ancient burial site and with the help of a spectrometer, you…

A: To calculate the age, we have a direct formula given by At=A0ekt where  At=Carbon-14 present in the…

Q: 12. A 4000 mg sample of bismuth decays to 500 mg in 18 minutes. What is its half-life?

A:

Q: HOw old iSamummy that has lost 497. Carbon-14, The half-life for Carbon-14 iS 5 730 years.

A: Given query is to find the the age of the mummy.

Q: A wooden artifact from an ancient tomb contains 20 percent of the carbon-14 that is present in…

A:

Q: Scientists can determine the age of ancient objects by the method of radiocarbon dating. The…

A: The half-life of the isotope is 5730 yrs.To Find:Estimate the age of the parchment.

Q: The half-life of radium in a piece of lead is 1600 years. What percentage of the original amount of…

A: Given that, the half-life of radium in a piece of lead is 1600 years. Note that, the formula for…

Q: Determine the half-life of a particular element if 200gr of that element decays to 15 gr in 12…

A: Given: 200 gr of an element decays to 15 gr in 12 hrs. To find: Half-life of an element.

Q: Suppose you possess some of a radioactive substance that has a half-life of 16 days. What fraction…

A: The half-life of a radioactive substance is the time it takes for half of the substance to decay. In…

Q: The decay constant for carbon-14 is 0.00012, with time measured in years. A piece of papyrus…

A: Decay of any radio active substance follow first kinetics and the equation of first order kinetics…

Q: 4. How old is a hominid skull with 30% of its original C14 concentration, given that the half-life…

A: Not required.

Q: 4. a. Living matter (both human and non-human) absorbs carbon-14. When living matter dies, there is…

A: Given,               T=5730 years The equation relating the number of carbon-14 atoms at two points…

Q: 4. The population of Lalaland is 600,000 currently and is expected to grow (continuously) at 3.5%…

A: The present population P =600,000 Growth rate r = 3.5 % per year To find population after time t =…

Q: A radioactive substance decays by 0.2% each year. a) If you started with 90mg of this substance, how…

A:

Q: Element X decays radioactively with a half life of 9 minutes. If there are 170 grams of Element X,…

A: Given- Element X decays radioactively with a half life of 9 minutes and there are 170 grams of…