Average speed = distance traveled divided by time taken. so 10 divided by 5, which is 2. her average speed was 2m per second. hope this helps!
In 1917, Rutherford discovered something new, he bombarded alpha particles on nitrogen gas and noticed that occasionally an oxygen atom is produced. From this he concluded that the alpha particles removes proton from the nucleus (positively charged particle). He named this playing with marbles and he become the first one to split an atom. Thus, by bombarding nitrogen with alpha particles, he observed the production of oxygen, a different element.
Therefore, he said bombarding atoms with particles is similar to playing with marbles.
The particles move faster because heat causes the atoms to speed up and move farther from each other.
The answer is 1.164451827 moles
