SLAC, the Stanford Linear Accelerator Center, located at Stanford University in Palo Alto, California, accelerated electrons through a vacuum tube two miles long (it can be seen from an overpass of the Junipero Serra freeway that goes right over the accelerator). Electrons which were initially at rest were subjected to a continuous force of 2×10−12 newton along the entire length of two miles (one mile is 1.6 kilometers) and reached speeds very near the speed of light.
(a) Determine how much time was required to increase the electrons' speed from 0.958c to 0.988c. (That is, the quantity ||/c increased from 0.958 to 0.988.)
time =？s
(b) Approximately how far did the electron go in this time? (Think about what is approximate about your result.)
distance =？m
基本翻译：
电子在加速器中前进，受到2e-12牛的恒定推力。
a)在此条件下，电子从0.958c加速到0.988c要多久？
b)在这段时间里该电子行进了大约多少距离？