levivader1063 levivader1063

18-03-2019
Advanced Placement (AP)

contestada

A radioactive isotope has a half-life of 40 years and a radioactivity level of 4 curies. How many years will it take for the radioactivity level to become 0.25?

Respuesta :

anikaraisa04 anikaraisa04

18-03-2019

it will take 160 years. >.<

Answer Link

Otras preguntas

The art teacher is buying new tables to go in the art room. Each table can seat 4 students. The art class has 30 students. How many total tables does the art te

During 2022, Metlock, Inc. had $117000 in cash sales and $918000 in credit sales. The accounts receivable balances were $162000 and $190800 at December 31, 2021

Help I need help help

Quadrilateral PQRS is inscribed in a circle. The ratio of mP to mR is 2:4. What is mR? F 30° H120° G 60° J Not here

The size shape and number of resultant bloodstains will depend generally on the amount of.

39 ft.². The length should be 10 feet more than its width. What should the dimensions of the deck be?

find the solution to the system of equations. Y=2x+2

What happened to Germany after hitler and WWII? two pages

why you think Europe was not the one to be "discovered" by the Americas.

Which pair of molecules has hydrogen bonding interactions?.