As shown in Video V1.9, surface tension forces can be strong enough to allow a double-ed...

As shown in Video V1.9, surface tension forces can be strong enough to allow a double-edge steel razor blade to “float” on water, but a single-edge blade will sink. Assume that the surface tension forces act at an angle relative to the water surface as shown in Fig. P1.72. (a) The mass of the double-edge blade is 0.64 x10^-3 kg, and the total length of its sides is 206 mm.

Determine the value of required to maintain equilibrium between the blade weight and the resultant surface tension force.(b) The mass of the single-edge blade is 2.61 x 10^-3 kg, and the total length of its sides is 154 mm. Explain why this blade sinks. Support your answer with the necessary calculations.