Some of their work involved X-rays produced by particle accelerators, devices that bring atomic particles into high energies.
VOA: special.2009.12.08
I will draw the famous picture of some particle moving and it's here at t of some value of x.
我会画某个质点运动的,经典图像,这是某个x值对应的时间t
You're only given the particle has acceleration a, and you are asked to find out what is x?
你只知道质点的加速度为a,你需要求出x是多少
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