A 0.650 m guitar string has a fundamental frequency of 660.1 Hz. When a guitar player presses down on a fret, the string has a new fundamental frequency of 720.2 Hz. What is the length of the
string when the guitar player is pressing down on a fret?

The radiation of the fire causes the saucepan to heat up. the conduction of the saucepan then to distribute the heat over the saucepan and to give heat to the water. the convection of the water distributing the heat within the water, till all the water is boiling

Inner peace.. jk it's  a stable electron configuration