asyncere13 asyncere13

21-05-2021
English

contestada

Krypton-85 has a half-life of 10.76 years. It decays into rubidium-85. Suppose
a sample contains 4 atoms of krypton-85 and 12 atoms of rubidium-85.
About how old is the sample?

Respuesta :

lopezln lopezln

25-05-2021

Answer:

It’s 21.52 years

Explanation:

I just took the test

Answer Link

Otras preguntas

Which Kelvin temperature is equal to 200.°C?

can you tell me what Is Pleonasm?

What are the functions of:Salivary Glands...Gallbladder...Liver...Pancreas..

The name of each contestant is written on a separate card, the cards are placed in a bag, and three names are picked from the bag. Identify which type of sampli

the one to one functions G and H are defined as followG={(-8,1),(1,5),(4,-5)(8,-9)}H(x)=3x+4find the following g^-1(1)=h^-1(x)=(h^-1oh)(-2)=

sue stacked one box onto another. the bottom had the height of 2 1/3 feet and the top box had the height of 3 2/3 feet. how tall were the stacked boxes?

Insert 2 irrational numbers between 2/5 and 3/4

how is acceleration of the cart related to the amount of force acting on it? the strips of it?

What are the functions of:Salivary Glands...Gallbladder...Liver...Pancreas..

what event triggered world war i ?