Chemistry, 17.09.2019 18:10, barstr9146
Aradioactive material, such as the isotope thorium-234, disintegrates at a rate proportional to the amount currently present. if q(t) is the amount present at time t, then d q/dt = −r q, where r > 0 is the decay rate. a. if 100 mg of thorium-234 decays to 82.04 mg in 1 week, determine the decay rate r. b. find an expression for the amount of thorium-234 present at any time t. c. find the time required for the thorium-234 to decay to onehalf its original amount.
Answers: 1
Chemistry, 22.06.2019 07:30, zamirareece17
1. list three scientific reasons cockroaches may fly.
Answers: 1
Chemistry, 22.06.2019 12:30, masteroftheuniverse3
When a scientific theory has been tested and proved by the scientific community, it becomes a law
Answers: 2
Chemistry, 22.06.2019 22:00, choatefarmsus
Does the number of ions in solution increase, decrease, or remain constant? it continuously decreases. it continuously increases. it decreases at first, then increases. it increases at first, then decreases.
Answers: 3
Aradioactive material, such as the isotope thorium-234, disintegrates at a rate proportional to the...
Mathematics, 07.12.2020 20:40
History, 07.12.2020 20:40
Mathematics, 07.12.2020 20:40
Mathematics, 07.12.2020 20:40
Biology, 07.12.2020 20:40