Solution

**Wave height,Hm = 0.75ft**

**water depth = 3ft**

**For a case of deep water wave**

**Wave length,λ = g/2π*T**^{2}** where T is the period of the wave **

** = 32.174 /2π *( 1.1)**^{2}

** =6.195 ft**

**λ is not much larger than the depth**

**Thus,**

**wave celerity ,Cp = $√ ( $ gλ /2π) = 5.63 ft/s**

**Group celerity,Cg = Cp/2 = 2.816ft/s**

**Wave energy can be calculated according to the linear wave theory**

**E = 1/8 ρgHm**^{2}

** = 1/8 * 1.94 *32.174 *32.174 * 0.75*0.75**

**=141.20 lb/s**^{2}

**Power = E*Cg **

**=141.20*2.817 **

**=397.62 lbft/s**^{3 }

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