Is Pluto part of the nine 9 planet

Explanation:

Pluto, once considered the ninth and most distant planet from the sun, is now the largest known dwarf planet in the solar system.

ʜᴀᴠᴇ ᴀ ɴɪᴄᴇ ᴅᴀʏ︎

uranium fissions/breaks up giving out energy and neutrons

the motion of a pendulum is a classic example of mechanical energy conservation. a pendulum consists of a mass (known as a bob ) attached by a string to a pivot point. as the pendulum moves it sweeps out a circular arc, moving back and forth in a periodic fashion.