Consider a 1-m-internal-diameter water channel made of finished concrete (n=0.012). The channel slope is 0.002. For a flow depth of 0.36 {~m} at the center, find the flow rate of water through the channel.
a. 0.81 m³/s
b. 0.69 m³/s
c. 0.75 m³/s
d. 0.92 m³/s