When pushing a toy truck up an inclined plane, the force that makes the truck goes up is the force that the child uses to push the truck. (The force that pushes
Therefore the correct option is C.
Answer:
Rust is a compound. What makes iron rust is its reaction with oxygen and moisture in the air.
A. is meaningless.
B. is perigee.
C. is apogee.
D. is perihelion.
