11. The diagram below shows a uniform meter rule of mass 300g balanced by two forces F, and F, IGN Force F, is 5N. Assuming there is no frictional force on the pulleys,
AR
Yjetre rule
40cm
String
F2 = 5N
Pulley
Calculate the force F,
(3mks)​

Four point charges each having charge q are located at the corners of a square having sides of length a. find symbolic expressions for the following. (a) the total electric potential at the center of the square due to the four charges (use any variable or symbol stated above along with the following as necessary: ke.) vtotal= (b) the work required to bring a fifth charge p from infinity to the center of the square (use any variable or symbol stated above along with the following as necessary: w=