Answer:
Step-by-step explanation:
The different isotopes have different "half-lives" – the time it takes to lose half of its radioactivity. Pu-239 has a half-life of 24,100 years and Pu-241's half-life is 14.4 years. Substances with shorter half-lives decay more quickly than those with longer half-lives, so they emit more energetic radioactivity.
Answer:
im too immature for this lol...9. the answer is 9 inches
Step-by-step explanation:
9+9=18
18+8=26
Answer:
You will save $10.
Step-by-step explanation:
Sale price: 25%
Original price: $40
25% off of $40
= $30
$40 - $30
= $10
Answer:
1014cm^2
Step-by-step explanation:
find the area of one side and times it by 6 (bc a cube has 6 sides)
13×13=169
169×6=1014
