電阻R/Ω | 2.0 | 4.0 | 6.0 | 8.0 | 10.0 |
電流I/A | 0.60 | 0.32 | 0.22 | 0.17 | 0.14 |
1.67 | 3.13 | 4.55 | 5.88 | 7.14 |
試根據(jù)表中數(shù)據(jù)在坐標紙上以為縱軸、R為橫軸,選擇適當?shù)臉硕冉⒆鴺耍嫵?img class="mathml" src="http://math.21cnjy.com/MathMLToImage?mml=%3Cmath+xmlns%3D%22http%3A%2F%2Fwww.w3.org%2F1998%2FMath%2FMathML%22%3E%3Cmfrac%3E%3Cmrow%3E%3Cmn%3E1%3C%2Fmn%3E%3C%2Fmrow%3E%3Cmrow%3E%3Cmi%3EI%3C%2Fmi%3E%3C%2Fmrow%3E%3C%2Fmfrac%3E%3Cmo%3E%E2%88%92%3C%2Fmo%3E%3Cmi%3ER%3C%2Fmi%3E%3C%2Fmath%3E" style="max-width:100%;vertical-align: middle;">圖線。
(i)求該波的速度;
(ii)處的質(zhì)點在0~0.2s的時間內(nèi)通過的路程為4cm,求該波的振幅以及處質(zhì)點的振動方程。