6. Calculate the electrostatic force for two charges qı = 4 uC , q2 = 5 uC, and d between
them r = 0.4 cm. Make sure you use meter as the unit for distance unit.

Any one please I will gladly appreciate it.

Ahollow metal sphere has 6 cm and 11 cm inner and outer radii, respectively. the surface charge density on the inside surface is −100nc/m2. the surface charge density on the exterior surface is:

If element x has 99 protons how many electrons does it have

A5 foot by 5 foot box culvert is buried 6 feet beneath the surface of the ground. a crosssection of this very long culvert (into and out of the page) is illustrated below. assume that the soil in which the culvert is buried has the following properties: jt = 120 pcf, w = 12%, ko = 0.50, ka = 0.33, and kp = 3.00. calculate the total horizontal force per unit length of culvert (fh) felt on one of the vertical faces of the culvert.