問題詳情

【題組】 ⑵假設忽略腳掌的影響,小腿長為 55 公分,小腿的質量中心的位置到腳與地面接觸點的位置之長度占小腿長度的 56.7%,則膝蓋所受的力矩(M)為多少牛頓-米(N-m)?(10 分)

參考答案

答案:B
難度:適中0.550351
統計:A(39),B(235),C(115),D(21),E(1) #
個人:尚未作答書單:grin 、die、grin

用户評論

【用戶】郵便局™の瑋

【年級】國三下

【評論內容】The new study showed that prosopagnosia is highly heritable and surprisingly common, afflicting, in some form, about 1 in 50 people 50個裡面有一個(B)It affects around one in fifty people.

【用戶】Ian Huang

【年級】高二上

【評論內容】Do you have trouble picking out a friend’s face among a group of people? There’s a name for your condition: prosopagnosia, or face blindness. The disorder was thought to be exceedingly rare and mainly a result of brain injury. But last month a team of German researchers took the first stab at charting its prevalence, and the results were remarkable. The new study showed that prosopagnosia is highly heritable and surprisingly common, afflicting, in some form, about 1 in 50 people—more than 5 million in the US alone. “That’s huge,” says Dr. Thomas Grüter of the Institute of Human Genetics...