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Chapter 2, Problem 4 Problem Determine the phase velocities of the traveling waves described in Problems 2.2 and 2.3. Step-by-step solution Step 1 of 4 Phase velocity is defined as rate of movement of phase of a wave in a particular direction. Mathematically phase velocity is expressed by the equation as follows; Here, is the angular frequency of wave and k is the wave number. Step 2 of 4 The provided wave equation in problem 2.2 is as follows; V Compare this equation with the standard equation of wave that is Substitute for k in the equation v= Step 3 of 4 Hence, the phase velocities of the travelling waves described in problems 2.2 are Step 4 of 4 The provided wave equation in problem 2.3 is as follows; V Compare this equation with the standard equation of wave that is Substitute k and win the equation = Hence, the phase velocities of the travelling waves described in problems 2.3 are