FIGURE EX29.37 is a cross section through three long wires with linear mass density 50 g/m. They each carry equal currents in the directions shown. The lower two wires are 4.0 cm apart and are attached to a table. What current I will allow the upper wire to float so as to form an equilateral triangle with the lower wires?
STRING THEORY ● each string has its own vibration depending on the amount of tension impacted upon it ● some strings vibrate faster than others ● different shapes and sizes ● there are a few, tiny, curled up dimensions at every small point in space-time ● open-looped strings ● attached to membranes that make up all matter and all forces ● only differences between each dimension is their shape ● our universe could coexist among multiple, parallel universes ● a graviton = closed-looped string which transmits gravity at the quantum level ● closed-looped strings = not attached to membranes, allowing them freedom to move in and out of other dimensions ● membranes can run parallel to each other ● with enough energy, strings co