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19.已知A、B兩物體體積相同,A物體密度為3g/cm3,B物體密度為4g/cm3,若將兩物體放入水中,則兩物體所受的浮力比為(A)1:1(B)3:4(C)4:3(D)9:16
問題詳情
19.已知A、B兩物體體積相同,A物體密度為3g/cm3,B物體密度為4g/cm3,若將兩物體放入水中,則兩物體所受的浮力比為
(A)1:1
(B)3:4
(C)4:3
(D)9:16
參考答案
答案:A
難度:
計算中
-1
書單:
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用户評論
【
小豬
】評論
因為A、B都是沉體,所以所受.....看...
上一篇 :
18.某物體之質量為100公克,當其完全沒入水中時的重量為80公克重,則物體所受浮力為多少公克重?(A)20(B)80(C)100(D)180
下一篇 :
20.下列哪個方法無法增加摩擦力?(A)廁所地磚的表面有粗糙顆粒(B)運動鞋底的紋路(C)指尖陀螺的滾珠軸承設計(D)雪地行駛的車輛輪胎須加掛雪鏈
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