Vibrations and Waves (id: 2550f3df0)

本题目来源于试卷: Vibrations and Waves，类别为 IB物理学

[填空题]
A 2.00-kg mass vibrates according to the eq;vtkvg/ -us1muatiox1lg wvpgf.-8n x=0.650cos7.40t where x is in 1xv w-glf p.g8meters and t in seconds. Determine
(a) the amplitude,    m
(b) the frequency,(round to two decimal place)$\approx$    Hz
(c) the total energy,(round to one decimal place)$\approx$    J
(d) the kinetic energy and potential energy when x=0.260 m.(round to one decimal place) PE$\approx$    J KE =    J

参考答案:
空格1: 0.65±2%  空格2: 1,18±2%  空格3: 23.1±2%  空格4: 3.7±2%  空格5: 19.4±2% 


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