perryjarvisr9285 perryjarvisr9285

03-05-2022
Physics

contestada

If the activity of a radionuclide decreases from 5,000 disintegrations per minute to 625 disintegrations per minute

in 12 hours, its half-life is?

Respuesta :

jsimpson11000 jsimpson11000

03-05-2022

Answer:

4 hrs

Explanation:

625 = 5000 (1/2)^n

625/5000 = 1/2^n

n = 3 half lives

3 half lives = 12 hours 1 half life = 4 hrs

Answer Link

Otras preguntas

What is the main religion of Latin america

Morgan found a stone arrowhead. He measured it three times. He measured it as 2 inches to the nearest inch, to the nearest 1/2 inch, and to the nearest 1/4 inch

1. How does the friction affect forward motion? Give an example. 2. Describe two ways to change the frictional force between two solids surfaces. Change t

State two ways in which a single-celled organism, such as amoeba, and a human body are alike?

How did Alexander the Great rise to power and how did he spread Greek culture to other lands?

How did Alexander the Great rise to power and how did he spread Greek culture to other lands?

a soccer team played 160 games and won 65% of them. how many did they win?

What is a group of organisms that look alike and can reproduce among their selfs ?

How did the depression affect women and children?

True or False along a divergent boundary, two plates slip past each other,moving in opposite directions.