3 Each end of a cord with = 4.10 g/m is attached to two opposite walls. The distance between the walls is the length of the cord. A block of mass m hangs from the middle of the cord. Neglect the mass of the cord in calculating the tension. 3L 4 M + (a) Find an expression for the transverse wave speed in the cord as a function of the mass of the block. (Use the following as necessary: m. Do not include units in your answer. Assume that m is measured in kg and v is measured in m/s.) V = (b) What is the mass of the block (in kg) if the wave speed is 39.0 m/s? kg

3 Each end of a cord with = 4.10 g/m is attached to two opposite walls. The distance between the walls is the length of the cord. A block of mass m hangs from the middle of the cord. Neglect the mass of the cord in calculating the tension. 3L 4 M + (a) Find an expression for the transverse wave speed in the cord as a function of the mass of the block. (Use the following as necessary: m. Do not include units in your answer. Assume that m is measured in kg and v is measured in m/s.) V = (b) What is the mass of the block (in kg) if the wave speed is 39.0 m/s? kg