For most purposes, we store electrical energy in batteries. but there are drawbacks to batteries: a)they release their energy rather slowly and are very damaging environmentally. b) capacitors would be much cleaner for the environment and can be quickly recharged. c) unfortunately they don’t store much energy.

luster is not a good characteristic to use by itself because luster is the property of minerals that indicates how much the surface of a mineral reflects light. the luster of a mineral is affected by the brilliance of the light used to observe the mineral surface.

force required to detach it is given by

charges are taken to be fundamental charge

now we have

so above is the minimum distance at which it will detach

the components of a vector are the parts of the vectors that are to each other.

b perpendicular