Well,
When an object's velocity changes, we call it acceleration.
Acceleration: The time rate of change in an object's velocity
Chan Hee can expect to observe about the samples after 16 days is that three-fourths of each sample will have undergone radioactive decay. The best answer is letter B.
A large elliptical galaxy. Hope this helped
Explanation:
Substances become neutral at the number 7 because at this point, the acid and Base are equal and becomes neutralized