Answer:
A) 80 N
Explanation:
The closer the particles get, the stronger the Coulomb force, which elongates choices C and D. The Coulomb force is inversely proportional to the distance squared. If the distance is cut in half, the force is multiplied by the reciprocal of (1/2)^2, which is 4. Multiplying it out, 20 times 4 is 80 N.
1. earth
2. solar system
3. milky way galaxy
4. local group of galaxies
5. universe
Answer:
B. More African Americans became registered to vote in Southern states.
Explanation:
