marcos810 marcos810

08-05-2021
Biology

contestada

3. If a rock was determined to be around 3.9 billion years old how much Potassium so would be left in that rock sample?
(Percentage of Potassium 40)

Respuesta :

dlatchana3 dlatchana3

08-05-2021

Answer:

The 3.9 billion year old rock has undergone three half-lives (3.9 divided by 1.3 = 3). After 3 half-lives, 12.5% of the potassium-40 remains undecayed.

Explanation:

Answer Link

Otras preguntas

A cone has a volume of 150 cm cubed what is the volume of a cylinder that just holds the cone?

An investor bought 600 shares of stock, some at $5.00 per share and some at $4.75 per share. If the total cost was $2912.50, how many shares of each stock did t

why did George W. Bush fail to gain the quick and easy victory in Iraq that he had expected

if employee A logged 120 hours of travel in four years and employee B logged hours of travel at a 20% higher rate, how many more hours did employee B have than

A crate is acted upon by a net force of 100N. An acceleration of 5.0 m/s^2 results. What is the rate of the crate?

An element that has a low first ionization energy and good conductivity of heat and electricity is classified as a (1) metal (3) nonmetal (2) metalloid (4) nobl

Which statement accurately describes Rome at the end of the Punic Wars? A. Veterans of the war were richly rewarded by the government for their years of service

Which of the following was not one of the results of the Civil War? A. The slaves were emancipated. b, The Union was saved. c. Women began demanding a greater p

Which statement accurately describes Rome at the end of the Punic Wars? A. Veterans of the war were richly rewarded by the government for their years of service

Positrons are spontaneously emitted from the nuclei of (1) potassium-37 (3) nitrogen-16 (2) radium-226 (4) thorium-232