Answer:
Explanation:
Given
Diameter 
radius 
From diagram, at top point
If Normal force is equal to Gravitational force

where N=normal reaction
m=mass of car
Normal reaction will provide centripetal force

thus



Answer:
D. It is upright.
Because convex mirror produce the real image, and the plane mirror produce it's upright.
The correct answer is the statement #3. The statement that says: your hypothesis must be testable, is a true statement about the scientific process. IT will be truly unreasonable and a waste to be doing experiments on a hypothesis that is not even possible to solve.
A parsec is a measurement of distance.