It's easy!but help..
question:at point F the marble doesnt have the same amount energy as it had at the start, where has the energy gone?

The marble as lost energy due to gravity, air resistance (if there is air), and the centripetal force when going around that loop.

Explanation:

Also a little in heat but that rly doesnt matter

answer: a) y=-8x+5

a) m= -8

b) m= -2

c) m= 7

d) m= 6

with the invention of the automobile, the woman of the house could drive to the store and get groceries. women were also free to socialize more. during world war ii women were allowed to work in factories to the war effort and could drive to work or ride mass transit buses to their jobs.