(See Fluids in the News article titled Walking on water, Section 1.9.) (a) The water strider bug shown in Fig. P1.131 is supported on the surface of a pond by surface tension acting along the interface between the water and the bugs legs. Determine the minimum length of this interface needed to support the bug. Assume the bug weighs and the surface tension force acts vertically upwards. (b) Repeat part (a) if surface tension were to support a person weighing 750 N.

AFTER MIDTERM 2 3RD last week 3D plotting Create matrices for X and Y like this: [X,Y] = meshgrid(10:.5:10); The variables are then available to use in equations: R = sqrt(X.^2+Y.^2); Z = sin(R)./R; The “n” in the syntax for contour are for how many lines there are in a side view Command Window: >> [X,Y] = meshgrid(10:.5:10); >> R = sqrt(X.^2+Y.^2); >> Z = sin(R)./R; >> surf(Z) Curve Fitting Calculate the line of best fit for the points: (5,9) (4,7) (3,5) (2,4) (1,2) Data To Fit