LLyons6385 LLyons6385
  • 25-03-2024
  • Chemistry
contestada

The half-life for the radioactive decay of calcium-47 is 4.5 d. If a sample has an activity of 4.0 ci after 27 d, What was the initial activity of the sample?

Respuesta :

Otras preguntas

Select the items that describe how the Crusades changed Europe. They revived interest in travel. They increased warfare between the European states. They brough
The ratio of adults to children is 8:5 of 390 people
What type of civic group are the National Organization of Women and the National Rifle Association?
fewer offSpring is a disadvantage of which form of reproduction?
How do you think that the food eaten by early humans affected the ways that they lived?
Which of the following is a possible long-term consequence of two organisms occupying the same niche?
Describe what is meant by a food chain using an example with four named organisms.
Describe how metal bars are used in candy-making.
Scientists have designed solar cells to trap solar energy and convert it to _____ energy. a hydrelectric b wind
a soccer ball is kicked from 3 feet above the ground. the height,h, in feet of the ball after t seconds is given by the function h=-16t^2+64t+3 find the time it