Question

一道SAT物理题求助~

Two metal spheres of equal size are charged and mounted on insulated stands（麻烦大家顺便把这句话翻译一下）. One sphere has a charge of +8uC and the second sphere has a charge of -14uC. The two spheres are touch together and then separated. The charge on the second sphere will now be

Answer 1

两个大小相同的金属球充电后放在绝缘的支架上。
答案：-3uC

追问

能给我解释一下不？

追答

两球相接触后，电荷将重新均匀分布。所以每一球上的电荷量为(1/2)(8uC - 14uC) = -3uC.