The u. s. army coastal engineering research center had a wave tank that was 193 m long, 4.57 m wide, and 6.1 m deep. if the tank is wlled with fresh water to a depth of 4 m, calculate the fundamental periods of longitudinal and lateral resonant oscillations in the tank. does it appear that these fundamental modes or their harmonics would cause any diyculty to experimenters who wish to operate at full-scale wave periods