作业帮这个是lab其他的都不需要,自要帮我回答一下这道题就可以了1) Would the value of the period for the timer be more accurate if you had drawn each tape through the timer for five seconds rather than for three seconds 可以写中文
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这个是lab其他的都不需要,自要帮我回答一下这道题就可以了1) Would the value of the period for the timer be more accurate if you had drawn each tape through the timer for five seconds rather than for three seconds 可以写中文
这个是lab
其他的都不需要,自要帮我回答一下这道题就可以了
1) Would the value of the period for the timer be more accurate if you had drawn each tape through the timer for five seconds rather than for three seconds
可以写中文的答案
这个是lab其他的都不需要,自要帮我回答一下这道题就可以了1) Would the value of the period for the timer be more accurate if you had drawn each tape through the timer for five seconds rather than for three seconds 可以写中文
Sure it does.
这是一个打点计时器测量重力加速度的实验,由于人为操作误差,摩擦,机械精度等方面的影响导致结果会有一定偏差.
加速度的公式为：a=2·S/△t^2,设此为真实加速度,并设人为操作造成的打第一个点的时间误差为dt（最大为一个计时器振动周期）,设摩擦和机械精度造成的S的误差为ds.
ds和dt的值固定不变,则经历时间越久,S和△t均约大,并且这两个参数和真实值之间的比值越来越接近于1,这就导致计算结果更加精确.
举个简单例子,10/（10+1）接近于1还是100/（100+1）更接近?