As the pendulum moves from point 2 to point 3, what happens to its mechanical energy?potential energy is converted to kinetic en
ergy and back again.kinetic energy is converted to potential energy only once.potential energy is converted to kinetic energy only once.kinetic energy is converted to potential energy and back again.
Answer: Potential energy is converted to kinetic energy and back again.
Explanation:At points 1 and 3, the pendulum stops moving, and its mechanical energy is purely potential. At point 2, the pendulum is moving the fastest, and its mechanical energy is purely kinetic. Therefore, as the pendulum moves from point 1 to point 3, its potential energy is first converted to kinetic energy, then back to potential.
The atomic number is the same as the amount of electrons and protons. For example: Oxygens atomic number is 8 so the proton and electron count is 8. Hydrogens atomic number is 1 so the proton and electron count is 1.
The bonds between C and O are double bonds, because Carbon has to make 4 bonds in prefer to satisfy the octet rule and have 8 electrons in its outer shell. There are 2 double bonds
