Answer:

Explanation:
As we know that the force required to move the clock from rest position must be equal to the maximum limiting friction
So we will have

now we know that

here we will have


now from above formula we will have


Answer:
Let N = N0 where N0 is the number of atoms originally present.
In 6 days N = N0 / 2
In 12 days N = N0 / 4
In 18 days N = N0 / 8 = .125 N0
So it would take 18 days.
The box is moving in the direction of Eduardo with a force of 300N since he is pulling 300N stronger than Clara.