gc textbook chapter 11 Vibrations and Waves (id: 3b8800ccf)

本题目来源于试卷: gc textbook chapter 11 Vibrations and Waves，类别为 通用国际物理

[填空题]
When you walk with a cup of coffeeukgbu 5r1 )hz;2qgmv8 (diameter 8 cm) at3aq. -k)q (oo;3n syd(i 7fb6athc7srxk7lnz just the right pace of about 1 step per second, the coffee sloshes more and more until eventually it starts to spill overh7t.a-oynk7 q xrol a33c 7 iqd(()6bz fksns; the top (Fig. 11–55). Estimate the speed of waves in the coffee.    cm/s

参考答案: 16±2%


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