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When a plant or an animal dies, its 14C content decreases with a half-life 5730 years....
help and explain please When a plant or an animal dies, its 14C content decreases with...
help and explain please
When a plant or an animal dies, its 14C content decreases with a half-life 5730 years. If an archeologist finds an ancient firepit containing partially consumed firewood and the 14C content of the wood is only 15% that of an equal carbon sample from a present-day tree, what is the age of the ancient site?
An archeologist finds an ancient fire pit containing partially consumed firewood, and the carbon-14 content of...
An archeologist finds an ancient fire pit containing partially consumed firewood, and the carbon-14 content of the wood is only 10.4 % that of an equal carbon sample from a present-day tree. What is the age in years of the ancient site? Your answer should be in the form of N x 104 years. Enter only the number N with two decimal places, do not enter unit. Carbon-14 has a half-life of 5 730 years
1. The nucleus 14C (half life 5730 y) is used in radiocarbon dating to determine the...
1. The nucleus 14C (half life 5730 y) is used in radiocarbon dating to determine the age of previously living material. (a)A certain sample of wood currently shows a decay rate of 35.0 decays/s of 14C The wood is taken from a structure that was built from a tree that was cut 7,000 years ago. What would have been the 14C decay rate of this wood sample when the tree was cut? (b) Find the total binding energy (in MeV)...
Can a magnetic field do work on a charge? yes no The half-life of 14C is...
Can a magnetic field do work on a charge? yes no The half-life of 14C is 5730 years. Explain how we can use this information to estimate the age of wood samples found in ancient campsites. Be explicit. Suppose the wood from an ancient campsite contains 1/128 of the 14C found in a present day sample. How old is the wood?
The half-life of 14C is 5730 years. A sample contains 92.1 % of the 14C that...
The half-life of 14C is 5730 years. A sample contains 92.1 % of the 14C that it would contain if it were still part of a living being. What is the age (in years) of this sample?
PS2.7 The half-life for the (first-order) radioactive decay of 14C is 5730 years. An archaeological sample...
PS2.7 The half-life for the (first-order) radioactive decay of 14C is 5730 years. An archaeological sample contained wood that had only 69 percent of the 14C found in living trees. What is its age?
11. My Notes Ask Your Teacher -/10 points Content Carbon dating An archaeologist finds some ancient...
11. My Notes Ask Your Teacher -/10 points Content Carbon dating An archaeologist finds some ancient jewelry made from bone. The jewelry has a carbon mass of 435 g (HINT: Assume all the carbon is 12C and determine the number of atoms) and careful measurements show that the remaining 14C has a current decay rate of 11 decays/s. Determine the age of the bone (and presumably the jewelry). Remember, the ratio of 14C to 12C when the animal died was...
Chem 142, Dr. Haefner 3 s. The radioactive decay of l4C is frst order, and the...
Chem 142, Dr. Haefner 3 s. The radioactive decay of l4C is frst order, and the half-life is 5800 years While a plant or anim ng, it has a constant proportion of 14C (relative to 12C) in its composition. When the organism dies, the proportion of 14C decreases as a result of radioactive decay, and the age of the organism can be determined if the proportion of carbon-14 in its remains is measured. If the proportion of 14C in an...
Carbon 14 is a radioactive isotope produced in the upper atmosphere by cosmic rays. It has...
Carbon 14 is a radioactive isotope produced in the upper atmosphere by cosmic rays. It has a half-life measured as 5730 : 40 years. Since plants and animals absorb carbon from the atmosphere, the percentage of carbon a living organism contains that is carbon 14 is equal to the percentage of carbon 14 in the atmosphere. When an organism dies, however (or when a layer of wood is laid down as bark in a tree), it ceases to absorb carbon....
Need answers. thank you VOCABULARY BUILDER Misspelled Words Find the words below that are misspelled; circle...
Need answers. thank you
VOCABULARY BUILDER Misspelled Words Find the words below that are misspelled; circle them, and then correctly spell them in the spaces provided. Then fill in the blanks below with the correct vocabulary terms from the following list. amino acids digestion clectrolytes nutrients antioxident nutrition basal metabolic rate extracellulare oxydation calories fat-soluble presearvatives catalist glycogen processed foods cellulose homeostasis saturated fats major mineral coenzyeme trace minerals diaretics metabolism water-soluable 1. Artificial flavors, colors, and commonly added to...
help and explain please
When a plant or an animal dies, its 14C content decreases with a half-life 5730 years. If an archeologist finds an ancient firepit containing partially consumed firewood and the 14C content of the wood is only 15% that of an equal carbon sample from a present-day tree, what is the age of the ancient site?
Can a magnetic field do work on a charge? yes no The half-life of 14C is 5730 years. Explain how we can use this information to estimate the age of wood samples found in ancient campsites. Be explicit. Suppose the wood from an ancient campsite contains 1/128 of the 14C found in a present day sample. How old is the wood?
PS2.7 The half-life for the (first-order) radioactive decay of 14C is 5730 years. An archaeological sample contained wood that had only 69 percent of the 14C found in living trees. What is its age?
11. My Notes Ask Your Teacher -/10 points Content Carbon dating An archaeologist finds some ancient jewelry made from bone. The jewelry has a carbon mass of 435 g (HINT: Assume all the carbon is 12C and determine the number of atoms) and careful measurements show that the remaining 14C has a current decay rate of 11 decays/s. Determine the age of the bone (and presumably the jewelry). Remember, the ratio of 14C to 12C when the animal died was...
Chem 142, Dr. Haefner 3 s. The radioactive decay of l4C is frst order, and the half-life is 5800 years While a plant or anim ng, it has a constant proportion of 14C (relative to 12C) in its composition. When the organism dies, the proportion of 14C decreases as a result of radioactive decay, and the age of the organism can be determined if the proportion of carbon-14 in its remains is measured. If the proportion of 14C in an...
Carbon 14 is a radioactive isotope produced in the upper atmosphere by cosmic rays. It has a half-life measured as 5730 : 40 years. Since plants and animals absorb carbon from the atmosphere, the percentage of carbon a living organism contains that is carbon 14 is equal to the percentage of carbon 14 in the atmosphere. When an organism dies, however (or when a layer of wood is laid down as bark in a tree), it ceases to absorb carbon....
Need answers. thank you
VOCABULARY BUILDER Misspelled Words Find the words below that are misspelled; circle them, and then correctly spell them in the spaces provided. Then fill in the blanks below with the correct vocabulary terms from the following list. amino acids digestion clectrolytes nutrients antioxident nutrition basal metabolic rate extracellulare oxydation calories fat-soluble presearvatives catalist glycogen processed foods cellulose homeostasis saturated fats major mineral coenzyeme trace minerals diaretics metabolism water-soluable 1. Artificial flavors, colors, and commonly added to...
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