320username 320username

04-09-2019
Physics

contestada

There is a 50 g sample of Ra-229. It has a half-life of 4 minutes.
How much will be left after 12 minutes?
A. 3.13 g
B. 6.25 g
C. 12.5 g
D. 25 g

Respuesta :

aricgray1022 aricgray1022

04-09-2019

Answer:

6.25

Explanation:

I just finished a quiz with that same question

Answer Link

nata001 nata001

04-09-2019

B. 6.25 g

Divide it by 2 every 4 minutes

Answer Link

Otras preguntas

Let “x” be the number of apples in a barrel. Which of the following is the expression that represents one less than twice the number of apples in the barrel?

PLEASE HELP What is the mode of the following set of numbers? 51, 73, 82, 51, 73, 103, 73, 125, 82, 125 51 73 125 82

Positively charged sodium ions transport electrical impulses in the nervous system. Which subatomic particle does sodium lose to attain a positive charge?

which is bigger three quarters or eleven sixteenths

18/48 as it's simplest form?

the strongest evidence for evolution from a common ancestor is

what happens at a hot spot?

Use patterns of zeros to find 5600÷7 show your work.

Calculate the following limit:

A piggy bank contains an equal number of pennies, nickels, dimes, and quarters. If the total amount of money in the piggy bank is $7.79, find the number of each