There are two isotopes of carbon. Carbon-14 is radioactive. Carbon-12 is stable. The half life of Carbon-14 is 5730 years. Carbon-14 is produced naturally in the atmosphere and absorbed by all living things. Therefore, in all living things, the ratio of Carbon-14 to Carbon-12 is the same and remains constant. In a sample of dead organic material, the ratio of Carbon-14 to Carbon-12 is found to be 4/5 of the expected value for living material. The best estimate of the age of the dead organic material is:

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Q: 3. Sketch V, and determine Vdc J UN ocol docn 10נ.2

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Q: 17. A child decides to take her cat on a walk, but the cat does not cooperate. The child pulls on…

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Q: WHAT WOULD HAVE A LARGER RADIUS F- OR N3-

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A: It is a property of quantum mechanics.

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Q: 3. Write a nuclear equation for the beta emission decay of: a. 9Co b. c. 2Pb 824

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Q: ) what is Hb, where it found and what is its Function inshort?

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Special Relativity

The theory of special relativity discusses how space and time are related to objects traveling along a straight line at a constant speed. Simply stated, as an object reaches the speed of light, its mass becomes infinite and it is unable to move faster than light. This interstellar speed limit has been the topic of much debate in astronomy, and also in science fiction when people consider how to fly over large distances.