Is the following statement true or false? (Justify your answer) ô²y_1 ô³y ôz? v? ôt? stretched in the z direction, where y is the displacement of the string in the vertical direction, the acceleration of the string in the vertical direction at a given point is proportional to the curvature of the string at that point (as given by the second derivative of the string displacement) (with a positive proportionality constant)." "In the classical wave equation = 0 for a nominally horizontal string

Is the following statement true or false? (Justify your answer) ô²y_1 ô³y ôz? v? ôt? stretched in the z direction, where y is the displacement of the string in the vertical direction, the acceleration of the string in the vertical direction at a given point is proportional to the curvature of the string at that point (as given by the second derivative of the string displacement) (with a positive proportionality constant)." "In the classical wave equation = 0 for a nominally horizontal string