Answer:
(This can be a way to think about it) Nicholas Mikolaj Kopernik,1473–1543 Polish astronomer who declared the now accepted theory that the Earth and the other planets move around the Sun aka the Copernican System.
Answer:
it should be 60 min at least 3 days a week
It can't. Acceleration IS a change in velocity.
When you rub the balloons, it will take electrons away, which is negative. So, the balloons are negative
