How many joules of kinetic energy does a pendulum have when it has 100 joules of potential energy

Consider the orbit of a typical comet around the sun, which is marked at five different positions, s, z, u, x , and p. sun a b x z p s u using kepler's second law of planetary motion, rank those positions in order of their relative speeds, with the position for the fastest speed first.

An object moves from the position +34m to the position -15m in 15 seconds. what is it's total displacement? what is it's average velocity?

What is a neurotransmitter involved in mood reward, addiction, and motor behaviors?