問題詳情
10. Wearing the face mask can provide a critical barrier, reducing most infectiousviruses during coughing, especially of asymptomatic people and those with mildsymptoms of COVID-19. Please calculate the force of cough flow acting on the mask.Assume the mask perfectly covers the mouth. The velocity of cough flow is 10 m/sand the opening of the mouth is 1 cm in diameter.
(A)0.001 N
(B) 0.01 N
(C) 0.1 N
(D)1N
(E) 10 N
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