Physics, 28.03.2020 01:56 adamkinney6110
Some unusual meteorites thought to be chips from Mars contain small amounts of radioactive thorium-232 and its decay product, lead-208. The half-life for this decay process is 14 billion years. Analysis of one such meteorite shows that 93.0 % of the original thorium remains How old is this meteorite?
Answers: 2
Physics, 21.06.2019 14:30, clairajogriggsk
Define the meaning of the unalienable rights of life liberty and persuit of happiness
Answers: 3
Physics, 22.06.2019 18:00, levilugar
Which statement is the best definition of an atom? a) anything that has mass and occupies space. b) the smallest particle that has the properties of an element. c) a substance that cannot be broken down chemically into simpler substances. eliminate d) the smallest unit of a substance that exhibits all of the properties characteristic of that substance.
Answers: 2
Some unusual meteorites thought to be chips from Mars contain small amounts of radioactive thorium-2...
Chemistry, 19.07.2019 07:00
Mathematics, 19.07.2019 07:00
Mathematics, 19.07.2019 07:00
Mathematics, 19.07.2019 07:00
History, 19.07.2019 07:00
English, 19.07.2019 07:00