Answer:
1. An encounter with the barrier
2. The distance traveled by the washer.
Explanation:
Answer:

Explanation:
According to the ideal gas law equation:

Let's express the number of moles in terms of mass and molar mass:

Let's divide both sides by volume:

Notice that:

So the equation becomes:

Expressing density:

Substituting the given values:

Answer:
peroid num= 3
group num=13 (boron Group)
Explanation:
Answer:
125 divided by 2 = about 62.5
62.5 mph
Explanation: