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

after germnay lost WWI they where treated fairly by the allies :true or false

What contributed to the development of major cities along rivers? a An availability of timber products b The cultural diversity of the area с An adequate source

How old was Mr. Nesbitt when he died?

What is the function of a cell wall (A) to protect and support the cell (B) to perform different functions in each cell (C) to prevent water from passing throug

Solve the following compound inequality. X+7(greater than or equal to) 10 And 10x-9(greater than or equal to) 1

How many covalent bonds are found in 1 water molecule?andHow is capillary action applicable to living things?

Given this equation for converting temperature from Celsius (c) to Fahrenheit (f): f = (9/5)c + 32 What is f when c is 30?

Solve the system by substitution. 12x + 6y + 72 = -35 7x - 5y – 6z= 200 x+y= -10

HELP PLEASE TIMED By 1900, more people in the industrialized world were attending concerts, theater performances, and sporting events. What is the best explanat

At which point in the plot are the characters introduced?