Amotor uses the attracting and repelling forces of magnets to create rotational motion. what type of energy results from this process? a) nuclear b) mechanical c) electrical d) gravitational

Explanation:

The mechanical energy of a body or a whole physical system is basically the sum of kinetic energy and potenital energy. Basically, you can defined it as the energy responsible for movements, because potential energy depends on the position and kinetic energy on the velocity, and both follow the conservation of energy law, which means the exchange one another to develop movement.

Therefore, the right answer is B) mechanical. A motor uses the attracting and repelling forces of magnets to create rotational motion, which result in mechanical energy.

explanation:

let the different atoms be x and y. each with four protons and same mass will be represented as follows.

mass number is number of protons + number of neutrons.

            and  

since, it is given that one has a negative charge while the other is neutral. therefore, there will be increase in number of protons and the atom will be represented as follows.

according to periodic table, mass number of beryllium is 9 and it has atomic number 4 so, the atoms will be and .  

the protons and neutrons will be located inside the nucleus whereas the electrons will be revolving around the nucleus.