問題詳情

4.Ajet-engine noise suppressor consists of a movable duct that is secured directly behind the jet exhaust by cable A and deflects the blast directly upward. During a ground test, the engine sucks in air at the rate of 43 kg/s and bums fuel at the rate of 0.8 kg/s. The exhaust velocity is 720 m/s. Determine the tension T in the cable. (25%)

參考答案

答案:B
難度:簡單0.784615
統計:A(2),B(102),C(12),D(2),E(0)

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