polkatheneko360 polkatheneko360

01-03-2021
Mathematics

contestada

how much of a radioactive kind of protactinium will be left after 28 hours if you start with 672 grams and the half-life is 7 hours?

Respuesta :

01-03-2021

Answer:

Step-by-step explanation:

672·0.5^(28/7) = 672·0.5⁴ = 42 grams

Answer Link

Otras preguntas

which of the following mountain ranges is the accepted physical border between Asia and europe?

What does Frithiof’s reaction to the people’s request to make him king reveal about his character? A-He is eager for the opportunity to lead from a position of

Metabolic pathways ___. A.control the flow of energy. B.control enzyme activity. C.can be linear or branched out. D.all the above.

What substance speeds up the rate of a chemical reaction?

The formation of cultures and societies has gone through a progression of steps. Place these steps in order. first: second: third: fourth: fifth:

A scientist separates a population of lizards into two groups. what would most likely increase the rate of speciation in this population?

if 368 teenagers in a population of 4,310 report that they have smoked at least one cigarette during the past year, to one decimal place, what percentage report

30 POINTS! Find the cube roots of 8(cos 216° + i sin 216°). Also, if you wouldn't mind, while you're here could you answer some other questions I have posted? T

Describe two characteristics of a communicable disease

What is the difference between primary sources and secondary sources?