A particle moves in a potential given by U(x) = -7 x3 + 2.1 x (J). Calculate the location of the stable equilibrium of this potential, in m.

Consider that a particular physical phenomenon can be modeled, in steric coordinates, by the scalar potential 0, q1 = r, q2 = 0, 93=0, find V, r(r, 0, 0) = r cos tan 0. If ê₁ = f, ê₂ = 4, 3 = knowing that, in generalized coordinates, V4(91, 92, 93) = 3 i=1 1 მს hi dqi

Please answer  parts (a) and (b), showing all work.