If we decrease water temperature to 5°C, the vapor pressure reduces to 863 Pa, and the density changes slightly, to 1000 kg/m3. For this condition, if V = 30 m/s, wepute: Ca = 2(131000 − 863) ≈ 0.289 (1000)(30)2 This is greater than 0.25, therefore the body will not cavitate for these conditions. Ans. (b)
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