You are studying a 3-km stretch of stream that is about 35 m wide. A gaging station on the stream provides you with an estimate that the average flow rate during your srudy was 3 cubic meters per second (ems). You toss a float into the stream and observe that it takes about 2 hr to traverse the stretch. Calculate the average velocity (rnps), crosssectional area (rn"), and depth (m) for the stretch. To make these estimates, assume that the stretch can be idealized as a rectangular channel