A table supports a wooden block placed on the tabletop. Which fundamental force of nature is responsible for this interaction, and why?
A.
The electric force, because the protons in the nuclei of the top atomic layer of the table repel the nuclei in the bottom atomic layer of the wood.
B.
The gravitational force, because by \(F=\) \(G M m / r^{2}\), the force of the table on the wood at that close range is sufficient to balance the force of the Earth on the wood.
C.
The electric force, because the outer elec- trons in the top atomic layer of the table repel the outer electrons in the bottom atomic layer of the wood.
D.
The strong nuclear force, because the pro- tons in the nuclei of the top atomic layer of the table repel the nuclei in the bottom atomic layer of the wood.
Exam No：AP Physics 1 Problem Set 1 Year：2024 Question No：APPhysics12024AP0198
Answer:
C
Knowledge points:
3.2 Fundamental Forces
Solution:
Download APP for more features
1. Tons of answers.
2. Smarter Al tools enhance your learning journey.
IOS
Download
Download
Android
Download
Download
Google Play
Download
Download