問題詳情

9. Cough can increase the initial horizontal velocity of the droplets, allowing thelonger travel distance of the droplets. Usually, the average velocity of cough flow is10 m/s. Please calculate the Reynolds number of the cough flow. Assume the openingof the mouth is 1 cm in diameter. Choose the closest answer.
(A)500,
(B) 1000,
(C) 3000,
(D) 5000,
(E) 6000

參考答案

答案：[無官方正解]
難度：計算中-1
書單：沒有書單，新增