Answer:
years
Explanation:
Given-
Half life of C years
As we know -
Where
Mass of radioactive carbon after a time period "t"
initial mass of radioactive carbon
radioactive decay constant
time
First we will find the value of "k"
On solving, we get -
Now, when mass of 14C becomes % of the plant material on earth today, then its age would be
years
Answer:
Anaphase is the stage of mitosis after the process of metaphase, when replicated chromosomes are split and the newly-copied chromosomes, the daughter chromatids, are moved to opposite poles of the cell.
Answer:
i think it's A i'm not 100% sure let me know if it's right
Explanation:
Answer:
300,000 years ago
Explanation:
Homo sapiens evolved from their early hominid predecessors between 200,000 and 300,000 years ago and developed a capacity for language about 50,000 years ago.
Answer:
READ EXPLANATION!
Explanation:
1. the roller coaster proceeds to climb the first "hill," increasing gravitational potential energy.
2. NO.
even if this were the case the amount of momentum isn't able to exceed the starting hill after departure!