Soo whats the question??????
Answer: sorry i dont know the answer sorry for that
Explanation:
Answer:
The 3.9 billion year old rock has undergone three half-lives (3.9 divided by 1.3 = 3). After 3 half-lives, 12.5% of the potassium-40 remains undecayed.
Explanation:
When you shower with hot water, everytime you get out the shower, outside it is cold, but inside it is hot due to the hot gas particles. When you shower with cold water, it is the opposite.
Answer:
That doesn't mean the energy is gone, it's just not where you are looking. The universe is defined as all energy and matter. It is everything. Closed system there is ...