本题目来源于试卷: Physics Unit11: Vibrations and Waves，类别为 国际高中通用物理
[单选题]
Doubling only the sprin 6s5lznk ca0v/pho)l;g conskco0awrvzekjw..k ;0,ndybt+9i/ i ( c i*it+tant of a vibrating mass-and-spring system produces what effect on the system's mechani*9.. wkavi k(ii/i e+0o;,0wjcrcydnz+kb ttcal energy?
A. increases the energy by a factor of two
B. increases the energy by a factor of three
C. increases he energy by a factor of four
D. produces no change
参考答案: A
本题详细解析:
暂无
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