How much work is required to move a + 1 . 5 C charge from a + 2 . 7 C

  How much work is required to move a $+1\mathrm{.}5\mu$C charge from a $+2\mathrm{.}7\mu$C charge that were initially $11\mathrm{.}5$ cm away to $6\mathrm{.}0$ cm$?$