Answer:

Explanation:
As we know that the acceleration of a point on the rim of the disc is in two directions
1) tangential acceleration which is given as

2) Centripetal acceleration

here we know that


now we know that net linear acceleration is given as

so we have


Answer:
Layer 1, Rock 2, Rock 1, Fault
Yes it would get colder because people help people learn through experiences with no one to help teach the world would be a cold lifeless place.
The answer is oil and water. If you want I could give you the reason too