Do you have the answer for this question? so i can provide u solution more effectively
Answer:
<em>4, A proton in a particle accelerator moves faster and faster.</em>
Explanation:
A particle accelerator according to Wikipedia.com is a machine that uses electromagnetic fields to propel charged particles to very high speeds and energies, and to contain them in well-defined beams. Large accelerators are used for basic research in particle physics.
As the proton moves around, it collides with other proton and the wall of the accelerator thereby undergoing net interaction.
I would say D because when you think about tug-of-war, when someone on one side lets go, the people on the other team are able to pull the rope further to their side. So the rope would move right to the side of the red team because someone on the blue team let go therefore, there is less balancing the rope on the blue teams side.