Geography, 31.07.2019 18:10 Queenjlife2583
Ageologist finds an old rock and wants to determine its age using rubidium-strontium dating. this is possible because 87rb, which has a half-life of 4.75×1010 y, undergoes β − decay and becomes 87sr. the geologist determines that the ratio of 87sr to 87rb is 0.075. assuming there was no 87sr in the rock when it was formed, determine the age of the rock. age of rock = (no response)
Answers: 3
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Identify the type of chemical reaction involved in each action.
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The solstices and equinoxes, and the number of hours of daylight associated with each, are major factors in the seasons. use the drop-down menus to identify the month when each of these events occurs. the winter solstice in the northern hemisphere: an equinox in both hemispheres: the summer solstice in the northern hemisphere:
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Geography, 22.06.2019 18:00, Misspaige4453
What are the similarities and differences in the way geologists and biologists approximate the age of the earth? justify your response in two or more complete sentences.
Answers: 3
Ageologist finds an old rock and wants to determine its age using rubidium-strontium dating. this is...
Mathematics, 20.05.2020 12:59
Mathematics, 20.05.2020 12:59