almanzajosselyn almanzajosselyn

03-05-2021
Physics

contestada

According to the graph, how many atoms would remain after two half-lives?

20 atoms

80 atoms

40 atoms

50 atoms

According to the graph how many atoms would remain after two halflives 20 atoms 80 atoms 40 atoms 50 atoms class=

Respuesta :

03-05-2021

Answer:

Let No be initial no of atoms

N = N0 / 2 after 1 half-life

N = N0 / 4 after 2 half-lives

So after 2 half-lives 20 of the 80 atoms remain

Answer Link

Otras preguntas

two identical freight cars roll without friction towards each other on a level track. one car rolls 2 m/s the other 1 m/s. after the cars collide they couple an

When was World War I?

in what ways is climate controlled by the sun and the water cycle ?

How many minutes are in 36 hours?

Trying to translate word problems. Five times the sum of 3 and twice some number is 70. what is the number?

What two major processes are involved in the oxygen cycle?

Does the depth of a pan affect how water freezes?

in an expression(8/9) squared (-81)+3/5dividedby-9/10

What is Sir Francis Drake hardships

Nadine can send or receive a text message for 15 cents or get an unlimited number for 5 dollars. Write and solve an inequality to find how many messages she can