Part A

Two negative and two positive point charges $($magnitude $Q=$

$2\mathrm{.}57mC)$ are placed on opposite corners of a square as

shown in the figure $(a=0\mathrm{.}105m).($Figure $1)$

Determine the magnitude of the force on each charge.

Enter your answers numerically separated by commas.

$F_1,F_2,F_3,F_4=$

Incorrect; Try Again; $5$ attempts remaining

Part B

Determine the direction of the force on each charge.

Enter your answers numerically separated by commas.

${}_1,{}_2,{}_3,{}_4=$

counterclockwise from the $+x$ axis