gabrielperez184108 gabrielperez184108

04-06-2021
Chemistry

contestada

A radioactive sample has an activity of 450 cpm three half lives after the initial activity was determined. What was the original activity?

Respuesta :

agbliyah agbliyah

04-06-2021

Answer:

original activity is 3600 cpm

Explanation:

3 half-lives = 450 cpm

2 half-lives = 900 cpm

1 half-life = 1800 cpm

answer = 3600 cpm

Answer Link

Otras preguntas

I have a teacher whos French. He always says je voudrais what does this mean?

A 4,000.00 principal earns 5% interest, compounded annually. After 4 years, what is the balance in the account? A. 500,000.00 B. 4,862.03 C. 4,600.00 D. 20,250.

A right rectangular prism has a length of 10 in., a width of 12 in., and a height of 16 in. the dimensions of the prism are halved. what is the surface area of

Whats the meaning of take me down like i'm a domino similes and metaphors?

Information can be carried on a carrier wave by changing, or modulating, either the amplitude or frequency. please select the best answer from the choices provi

What two nations decided the fate of korea after world war ii?

Your high beam headlights illuminate the road in front of you for __________ feet. a. 150 b. 450 c. 650 user: alcohol acts like an anaesthetic is a suppressa

Cherokee Strength In the late 1820s, gold was discovered in the northern and central regions of Georgia. With thoughts of easy money, many European settlers ca

How do I write 0.35 as money

When added to the word distribution, which prefix creates a word meaning “bad distribution”? A. col- B. hyper- C. mal- D. sys-