Convection Current
This happens when there is a noteworthy contrast in temperature between two sections of a liquid. At the point when this temperature distinction exists, hot liquids rise and cool liquids sink, and after that streams, or developments, are made in the liquid
The only answer that can justify being a hypothesis is C.
normal force=mass*gravitational force
normal force=40*0
normal force=40
Answer:
The average speed of the cars is 50mph
Explanation:
Option C