Answer:
D. The direction of the force will change and it will point to regions of lower potential energy.
Explanation:
Direction will change because now you will have the opposite charge. It will still move to the lower potential because of the law of conservation of energy.
Answer:
The correct answer is B. <u><em>Strong Nuclear.</em></u>
Explanation:
An atom contains protons, neutrons, and electrons. The nucleus of an atom consists of bound protons and neutrons (nucleons). The negatively charged electrons are attracted to the positively charged protons and fall around the nucleus, much like a satellite is attracted to the gravity of the Earth. The positively-charged protons repel each other and aren't electrically attracted or repelled to the neutral neutrons, so you may wonder how the atomic nucleus sticks together and why protons don't fly off.
The explanation for why protons and neutrons stick together is known as "the strong force." The strong force is also known as the strong interaction, color force, or strong nuclear force. The strong force is <u><em>much more powerful</em></u> than the electrical repulsion between protons, however, the particles have to be close to each other for it to stick them together.
Answer:
Explanation:
From the Law of Conservation of Momentum, we can write the following equation:
Because the toy car was initially at rest, 
.
Therefore, we can plug in given values and solve for 
:
(two significant figures).
New force is 1/4 of force when distance is doubled
