The correct answer is:-
alternating.
A contact force is a type of force which act on an object by coming in contact with the object. Examples of contact force that acts through a force field are: applied force, frictional force, air resistance force, tension, spring force, etc.
Examples of forces that act through a force field are gravitational force, electromagnetic force, the weak interaction and the strong interaction.
Earth is divided into two hemispheres/coast. Which is south, north, east, and west.
California is west coast.
Answer:
52,360,000km
Explanation:
To solve this problem you use a conversion factor.
By taking into account that 1UA = 1.496*10^{8}km you obtain:

hence, 0.35UA is about 52,360,000km. This is the least distance between Mars and Earth