Physics Unit10: Fluids Related Topics (id: bff3992c1)

本题目来源于试卷: Physics Unit10: Fluids Related Topics，类别为 通用国际物理

[单选题]
A block of metal weighs 40 N in air and 30 N in wxw wsp-(o*(zgater. Whah7gre6*;g 6qum6zh1+lffss c1q i x7ht is the buoyant force of the waterh6m7sfef6hc;+z gug*1 7lxqsqrh6i1?

A. $10 \; N$
B. $30 \; N$
C. $40 \; N$
D. $70 \; N$


参考答案:  A


本题详细解析: 暂无

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