solution:
Half life of 14C = 5730 years
(1/2)(x/5730) = 0.89
(x/5730) log (0.5) = log (0.89)
x/5730 = log (0.89) / log (0.5)
x = 5730 log (0.89) / log (0.5)
x = 963.34 years
A fossil is found to have a 14^C level of 89.0% compared to living organisms. How...
A fossil is found to have a 14C level of 77.0% compared to living organisms. How old is the fossil? Number years Next D Check Answer KD Previous e dive Up & Vilew Solution 9 Hint
please help A fossil is found to have a Clevel of 72.0% compared to living organisms. How old is the fossil? age: years How many neutrons are needed to initiate the fission reaction? 230 + ? 1.Sr + 4 Xe + 3n number of neutrons: Resources 18 decays by positron emission, Balance the nuclear equation by giving the mass number, atomic number, and element symbol for the missing species. 18F + Balance this nuclear reaction by supplying the missing nucleus....
A fossil was analyzed and determined to have a carbon-14 level that is 80 % that of living organisms. The half-life of C-14 is 5730 years. How old is the fossil?
Part D A fossil was analyzed and determined to have a carbon-14 level that is 30 % that of living organisms. The half-life of C-14 is 5730 years. How old is the fossil? Express your answer with the appropriate units. View Available Hint(s) μΑ ? t = Value Units
researchers find a fossil of a large ma Researchers find a fossil of a large mammal that contains one-sixteenth the amount of carbon-14 that is preset in living organisms. Using carbon-14 dating, about how old is this fossil? Recall that carbon-14 has a half-life 01 5730 years. 11,460 years 17,190 years 22,920 years 91.680 years
A skull has a carbon-14 decay rate of 3.85 disintegrations/min/g of carbon. How old is the skull if living organisms have a C-14 decay rate of 16.3 disintegration/min/g, t1/2=5730 yr
Some fossil bones containing 1/32 of their original amount of carbon-14 are found. How many half-lives have passed? How old are the bones? (HINT: The half-life of carbon-14 is 5,730 years. If 1/8 of the original amount of carbon-14 was present, 1/8 = 1/23 or 1/(2x2x2), therefore 3 half-lives would have passed and therefore, the bones would be 5,730 years x 3 = 17,190 years old)
Catalase is a common enzyme found in nearly all living organisms exposed to oxygen. It is a very important enzyme in protecting the cell from oxidative damage by reactive oxygen species. With this information answer the following: a. the substrate and products of catalase? Explain? b. The type of reaction performed by catalase? Explain? c. Factors that could increase or decrease the activity of an enzyme-like catalase? Explain? d. in what type of cells is catalase found? How catalase is...
Discuss how physiology plays a role in the ecological challenges organisms have living in aquatic terrestrial and variable environments. Give examples.
The cloth shroud from around a mummy is found to have a 14 activity of 9.2 disintegrations per minute per gram of carbon as compared with living organisms that undergo 16.3 disintegrations per minute per gram of carbon. Part A You may want to reference (Pages 913-916) Section 21.4 while completing this problem From the half-life for "C decay, 5715 yr, calculate the age of the shroud. Express your answer using two significant figures. EVO AXO O 2 ? 4.81...