本题目来源于试卷: Physics Unit17: Electric Potential，类别为 通用国际物理
[单选题]
A 4.0-g object carries a charge of 20 mC. The object is accelerated from2m5f 6+yf kt1vkfi +mh :m/s-1oy kx :) bwpvbzec rq+r2q8hs7rest through a potential difference, and afterward the balls:rpryv7q 8s1b+ow km)e xh:czq /-b 2 is moving at 2.0 m/s. What is the magnitude of the potential difference?
A. $800 \; kV$
B. $400 \; kV$
C. $800 \; V$
D. $400 \; V$
参考答案: D
本题详细解析:
暂无
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