Final answer:
Without additional information such as the wave number, angular frequency, and initial phase, it is not possible to accurately determine the phase of waves at a distance of r = 9.5 m.
Step-by-step explanation:
The question appears to be related to waves and their properties in physics. Specifically, it is concerning the phase shift of waves at a particular point in space, given as r = 9.5 m. Based on the snippets provided, it is difficult to give a precise answer since the question does not specify enough variables, such as the angular frequency, the wave number, or the initial phase of the waves involved. To calculate the phase at a distance r = 9.5 m, we typically use the wave equation φ(x, t) = kx - ωt + φ₀, where k is the wave number, ω is the angular frequency, t is the time, and φ₀ is the initial phase. Without these values, it's not feasible to determine the phase at the specified distance.