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

Which of the following describes the narrator's perspective? A. The narrator does not want the recipient of the letter to visit him. B. The narrator wants to go

2+2 son pea los anuncios

PLEASE HELP, ASAP. TY IF U HELP. GIVING BRAINILEST TO CORRECT ANSWER, TY :P In 2-3 sentences, describe the purpose of studying and learning the meanings of pref

How many WATTS are used in a 5 amp drill that uses 110 volts?

- What mass of sulfur trioxide is formed and what is the limiting reactant? Please show all of your calculations so I can understand, please and thank you?

A family buys a studio apartment for $240,000. They pay a down payment of $48,000. a. Their down payment is what percent of the purchase price? b. What percent

A health food store has launched a new pack of vitamins for children. The store records the number of packs ordered by a random sample of 100 online customers a

what part of the world does north Africa share culture traits with?

Can someone help me please fast??

Which of the following is a paid employee working for an interest group? A. a lobbyist B. a bureaucrat C. a blogger D. a city mayor