One end of a light uniform rod is attached to a wall by a frictionless hinge. The rod is held in a horizontal position by a wire that runs from the other end of the rod to the wall. The wire has length 2.00 m and makes an angle of 30.0 ° with the rod. A block with mass m is suspended by a light rope attached to the middle of the rod. The transverse fundamental standing wave on the wire has frequency f. The mass m is varied and for each value the frequency is measured. You plot f 1 versus m and find that your data lie close to a straight line with slope 20.4 kg−1⋅s−2. What is the mass of the wire? Assume that the change in the length of the wire when the tension changes is small enough to neglect