1. Find an algebraic expression for the electric field strength E0 at the surface of a charged sphere in terms of the sphere's potential V0 and radius R. 2) What is the electric field strength at the surface of a 0.80-{\rm cm}-diameter marble charged to 550 V?

Why do electron microscopes have higher resolving power than light microscopes?

Ais useful when you need a simple machine to you separate two things. a. lever b. screw c. pulley d. wedge

Although longitudinal waves can travel through all media types what is the disadvantage of this type of wave transmission? a) he efficiency of he wave transmission is greatly diminished as the media becomes less dense b) the oscillation of one set of particles has a huge impact on neighboring particles c) particles become too close together as they bump into each other making it more likely to hit other particles down the line