$1.(2$pt$)$ What is the dimension for Momentum flow rate $($shV$)($A$)\text{'}$MLT $\text{'}$J$($B$)[$MLT$?]($C$)$IMLIT$!)($D$)$ IML?T$?)2.(2$pt$)$ The Reynolds number can be viewed as the ratio of$($A$)$ Drag force$/$Dynamic force$($C$)$ Kinetic force$/$Viscous force$($B$)$ Kinetic force$/$Compressive force$($D$)$ Kinetic force$/$Gravitational force$3.($Opt$)$ A hydraulic model, $1/20$ scale, is built to simulate the flow conditions of a spillway of a full$-$scale dam. For a particular run, the waves downstream were observed to be $8$ cm high in the model.$($a$)$ how high would be similar waves on the prototype dam operating under the same conditions?$($b$)$ if the wave period in the model is $2$ second, what would the wave period in