1
answer
0
watching
223
views
6 Nov 2019
The bones of a newly discovered dinosaur weigh 170 pounds and measure 9 feet, with a 6-inch claw on one toe of each hind foot. The age of the dinosaur was estimated using a radioactive substance dating of rocks surrounding the bones. Complete parts a and b. a. The radioactive substance decays exponentially with a half-life of approximately 1.31 billion years. Use the fact that after 1.31 billion years a given amount of the radioactive substance will have decayed to half the original amount to show that the original to show that the decay model for the radioactive substance is given by A = A_0 e^-0.52912t, where t is in billions of years. To show that the decay model for the radioactive substance is A = A_0 e^-0.52912t find the decay rate k for a substance. Substitute the value of A and t in the exponential decay model. A = A_0 e^kt A = A_0 e^kt = A_0 e^1.31k Substitute Show transcribed image text
The bones of a newly discovered dinosaur weigh 170 pounds and measure 9 feet, with a 6-inch claw on one toe of each hind foot. The age of the dinosaur was estimated using a radioactive substance dating of rocks surrounding the bones. Complete parts a and b. a. The radioactive substance decays exponentially with a half-life of approximately 1.31 billion years. Use the fact that after 1.31 billion years a given amount of the radioactive substance will have decayed to half the original amount to show that the original to show that the decay model for the radioactive substance is given by A = A_0 e^-0.52912t, where t is in billions of years. To show that the decay model for the radioactive substance is A = A_0 e^-0.52912t find the decay rate k for a substance. Substitute the value of A and t in the exponential decay model. A = A_0 e^kt A = A_0 e^kt = A_0 e^1.31k Substitute
Show transcribed image text Deanna HettingerLv2
8 May 2019