20. A hydraulic lift raises a 2000-kg automobile when a 500-N force is applied to the smaller piston. If the smaller piston has an area of 10 cm2, what is the cross-sectional area of the larger piston? Note that the acceleration due to gravity g = 9.8 m/s2.
(A) 40 cm2
(B) 80 cm2
(C) 196 cm2
(D) 392 cm2
(E) 160 cm2

答案:登入後查看
統計: A(5), B(1), C(0), D(5), E(0) #3224666

詳解 (共 1 筆)

#6968073
1. 題目解析 這題目涉及到流體力學中的...
(共 1473 字,隱藏中)
前往觀看
0
0

私人筆記 (共 1 筆)

私人筆記#6449612
未解鎖



(共 1 字,隱藏中)
前往觀看
0
0