Consider a mass m moving in two dimensions with potential energy u (x, y) = 2 1 kr 2 , wherer 2 = x 2 + y 2 . write down the lagrangian, using coordinates x and y, and find the two lagrangeequations of motion. describe their solutions. [this is the potential energy of an ion in an "iontrap", which can be used to study the properties of individual atomic ions.]

explanation: in any substance/object, the particles inside it (atoms/molecules) constantly move in random directions and with random speeds (this motion is called brownian motion). as a result, the particles have some kinetic energy (which is proportional to the temperature of the substance).

explanation:

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i believe it is b. what was the cause of the big bang

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elctricity and magnet is conversion to it