the-following-items-were-found-at-an-ancient-campsite-an-ax-with-a-stone-blade-and-a-wooden-handle-a

Name: the following items were found at an ancient campsite an ax with a stone blade and a wooden handle a
Uploaded: 2020-06-17
Duration: 15 s
Channel: Numerade
Description: The following items were found at an ancient campsite: an ax with a stone blade and a wooden handle, a clay pot, ashes of a campfire, a jawbone of a deer, and an arrowhead. Which objects could be used to determine the age of the site? Explain.

Question

The following items were found at an ancient campsite: an ax with a stone blade and a wooden handle, a clay pot, ashes of a campfire, a jawbone of a deer, and an arrowhead. Which objects could be used to determine the age of the site? Explain.

David Collins · Accepted Answer

anything. Once living congee carbon dated because it would have absorbed carbon 14. So this thing would include the hand with the axe, the ashes from the fire and the deer job own.

Katherine Mccandless · Answer

by looking at how activity or the rate at which decay occurs changes over time. Forgiven isotope We can make predictions about the age of different things. The equation that we use is the activity at any given time is equal to the initial activity times 1/2 a t over t 1/2 where t is the time or the age and t 1/2 is the half life. So we look at the activity at a given time. The initial activity. The time has gone by or in this case, the age and the half life which is specific to the isotope. So typically we use carbon 14 for archaeological dating. And so with carbon 14 the initial activity is 15.3 decays per minute per gram, and the half life is 5730 years. So if we have, for example, on artifact part, which in this case is the handle of a sword that has an activity of 10.1 decays per minute program we can solve for the age 10.1 equals 15.3 times 1/2 T divided by 5730 years dividing both sides by 15.3. This is 0.66 zero one because the tea is in the exponents. We have to take the natural log of both sides. So the natural log of 0.6601 equals the natural log of 1/2 times T over 5730 dividing both sides by the natural log of 1/2 0.599 Musical to t over 57 30 or cross multiplying T is 3433 years old. You&#x27;re the same thing for the wood, which has an activity of 13.8 decays per gram per minute. So 13.8 equals 15.3 times 1/2 t to the 5730 same steps dividing by 15.3 went 90196 equals 1/2 t 5730 taking the natural log of both sides and then solving algebraic Lee. She is 853 years old. The weird part is a ribbon sample that has an activity of 12.1 so 12.1 close 15.3 times 1/2 t over 5730. Using the algebraic steps above you find that T is 2940 years old. And then finally, the sheet has an activity a 15.0. So our initial activity again, it&#x27;s 15.3 times 1/2 t over 5730 t equals 163 years ago. And so if we look at which is closest to ah 100 a d or almost 1900 years ago, that would be the ribbon.

David Collins · Answer

carbon 14 could be used in order to age things that were living. That&#x27;s because there&#x27;s a constant ratio of carbon 14 to carbon. 12 is produced in the atmosphere due to the cosmic rays colliding with nitrogen 14 and plants consume. Carbon is carbon dioxide, and animals consume the plants, so anything living has an equilibrium of carbon. 14. Carbon 14 and the living thing will begin to decay, but it will be replenished. Aziz. More carbon dioxide is consumed by the plants and other living things. Consumer plans. When death occurs, however, carbon 14 continues to decay without replenishment. Therefore, the amount of carbon 14 has a ratio to carbon. 12 could be used to age the item. However, it only works if we know fairly well the amount of carbon 14 that was present at the age of the sample as it could change due to the activity of the sun. And it only works on living things or things that were once living, and it&#x27;ll it works well to age, things that are less than about 10 or 15,000 years old.

David Collins · Answer

but the carbon 14 activity of an object from an ancient temple. It was 10 counts per minute, and we know that the activity of a piece of wood cut today would be 40 counts per minute, then 40 counts per minute. 1/2 life later would be 20 counts per minute in the second half. Life later would be the 10 counts per minute, so it appears that to half lifes have passed from the time the wood was cut for the ancient temple. If 2/2 lifes have passed, then two times the half life of carbon 14 which is 5730 years, would yield 11,460 years old.

Gwendolyn Burke · Answer

carbon 14 with its half life of 5700 years, can be used to date organisms that were living as long as about 60,000 years ago. The way that this is done is by knowing the percentage of carbon 14 that&#x27;s in the atmosphere compared to the percentage of carbon 12 that&#x27;s in the atmosphere. That percentage is relatively stable. There&#x27;s some fluctuations, but it&#x27;s relatively stable. And, as the organism is living, the carbon 14 that it takes in through, ah, the life processes. The carbon 14 that the organism consumes within its body is built within its structure, and it remains the same percentage as the percentage jets in the atmosphere. So whatever, the percentage of carbon 14 is in the atmosphere, the same percentages within the living organism as long as it&#x27;s alive. Once the organism passes, it no longer takes in carbon 14 from the atmosphere, and the carbon Fort teen that&#x27;s with in its body or structure will start to decay away. Then we can use 1/2 life calculation. Um, by knowing the amount of remaining carbon 14 that&#x27;s in the organism, we can use 1/2 life calculation to figure out how old it was. Ah, when it was alive, How old it is now compared to when it was living and consuming carbon 14 from the air.

Niamat Khuda · Answer

I let some problems 16.8 before the problem stays. One of four stronger process. 15.5% off. Original amount of provenance present during analysis so we can write The original amount of marble is 100% initially at the time off Macy&#x27;s the around presenting 15.5. No, the whole play off the process is given. We need to find what is that age on the truth. So you know on the first older reaction the half life easy granted. Can you help musical points? Tree line? Do they did it by 693 Divided by the red constant so we can leave the big question. Jeez, from 1 to 1, Beginning in verse four, you&#x27;re in verse one. We know the integrated dredge blow for four Stroke of action is so using this weekend because it is the age off the to solved a patient for 19. It&#x27;s insurmountable battles given which gives the age off. The deal is akin to 1.54 wanted by dented Bowl full. Yeah,

Problem

Scientists determine that the wooden beams of a s…

Problem 9 Easy Difficulty

The following items were found at an ancient campsite: an ax with a stone blade and a wooden handle, a clay pot, ashes of a campfire, a jawbone of a deer, and an arrowhead. Which objects could be used to determine the age of the site? Explain.

Answer

Wooden handle of ax, deer jawbone, ashes these can se used to find age from carbon dating because all of these have C in them.

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Wooden handle of ax, deer jawbone, ashes these can se used to find age from carbon dating because all of these have C in them.

Living by Chemistry

Theodore D.

Stephanie C.

Morgan S.

Karli S.

Intro To Chem - Introduction

Classification and Properties of Matter

Angelica M. StacyLiving by Chemistry

Theodore D.

Stephanie C.

Morgan S.

Karli S.

Angelica M. Stacy

Living by Chemistry