Geography, 18.09.2019 00:00 lucywood2024
The ages of rocks that contain fossils can be determined using the isotope 87rb. this isotope of rubidium undergoes beta decay with a half‑life of 4.75×1010y . ancient samples contain a ratio of 87sr to rb87 of 0.0165. given that 87sr is a stable product of the beta decay of 87rb, and assuming there was originally no 87sr present in the rocks, calculate the age of the rock sample. assume that the decay rate is constant over the relatively short lifetime of the rock compared to the half-life of 87rb.
Answers: 1
Geography, 22.06.2019 10:00
Ms.ringer asked her class "what are the favorite colors of the students in our school" which student correctly deceives ms.ringer's question
Answers: 3
Geography, 23.06.2019 07:30
Which of these has the least impact on the climate of a place
Answers: 2
Geography, 24.06.2019 21:30
What happens if you look at the sun through a magnifying glass? would it be any worse than just looking at the
Answers: 1
The ages of rocks that contain fossils can be determined using the isotope 87rb. this isotope of rub...
Mathematics, 15.04.2021 19:30
Mathematics, 15.04.2021 19:30
History, 15.04.2021 19:30
English, 15.04.2021 19:30
Arts, 15.04.2021 19:30
English, 15.04.2021 19:30
Geography, 15.04.2021 19:30
English, 15.04.2021 19:30
Mathematics, 15.04.2021 19:30