Answer:
After 5 second 25% C-15 will remain.
Explanation:
Given data:
Half life of C-15 = 2.5 sec
Original amount = 100%
Sample remain after 5 sec = ?
Solution:
Number of half lives = T elapsed / half life
Number of half lives = 5 sec / 2.5 sec
Number of half lives = 2
At time zero = 100%
At first half life = 100%/2 = 50%
At second half life = 50%/2 = 25%
Thus after 5 second 25% C-15 will remain.
Seasons
The earth revolves around the sun, sunlight. hits different parts of the earth, causing yearly changes in climate. called seasons
Summer
Spring
One year
Sun
Winter
*Southern Hemisphere seasons
Autumn
AuI3, or Gold Iodide.
Hope this helps! :)
Answer:
they must do a background check
Explanation:
they need to check the liscence and do a small interrigaition
