monicafisher02 monicafisher02

13-07-2020
Mathematics

contestada

The half-life of radium-226 is 1590 years. If a sample contains 400 mg how many mg will remain after 4000 years?

Respuesta :

MathPhys MathPhys

13-07-2020

Answer:

69.9 mg

Step-by-step explanation:

A = A₀ (½)^(t / T)

where A is the final amount,

A₀ is the initial amount,

t is time,

and T is the half life.

A = 400 (½)^(4000 / 1590)

A = 69.9 mg

Answer Link

Otras preguntas

On a coordinate plane, parallelogram A B C D is shown. Point A is at (1, 3), point B is at (8, 8), point C is at (12, 5), and point D is at (5, 0). If line segm

Nominating justices to serve on the U.S. Supreme Court is the responsibility of A. the President B. political parties C. Congress D. the states. Laws of the sta

12. Which transformation will place the trapezoid onto itself? A. counterclockwise rotation about the origin by 90° B. rotation about the origin by 180° C. refl

20. Which important document did Franklin heip Thomas Jefferson write? The Bill of Rights The Articles of Confederation The Declaration of Independence The Monr

plssssssssssssssss helppppppppppppp guysssssss ;)

PLS HELP! DUE TODAY! 15 POINTS!

Carbon has six protons and six neutrons. Which of the following represents the arrangement of electrons in a carbon atom? 2,2,2 2,10 2,4 2,8,2 Please exp

How do I solve a polynomial of highest power as 3 on a scientific calculator.

Which of the following are ways that video-game consoles exemplify convergence? Select all that apply. Multiple select question. The consoles offer original pro

A package of 3 pairs of insulated socks cost $20.37. What is the unit price of the pairs of socks?