# origin

1. ### Origin of Gibb's free energy

Gibb's free energy gives the energy which is easily available in the system, it can be used to do work. But I wonder what is the origin of the Gibb's free energy? Can anyone explain at the molecular point of view? As in, say the electrons are in a random state of motion, so the collective energy...
2. ### Wave experiment - origin of a wave based on 3 points

Trying to help my kid with an experiment. In a tank of water, if you drop a marble it creates a circular wave. If you have 3 sensors in that tank that can detect the arrival of that wave, could you mathematically calculate the position where the object was dropped into the tank based on the...
3. ### A body starts from origin with initial velocity U and retardation KV^3...?

A body starts from origin with initial velocity U and retardation KV^3 where V is instantaneous velocity of the body. A) velocity of the body at any instant is √(2U^2Kt + 1) B) velocity of the body at any instant is U/[√(2U^2Kt + 1)] C) the x coordinates of the body at any instant is...