Asolid sphere of radius r is made of an insulating material. it holds a charge, q, which is distributed evenly throughout the sphere and gives it a uniform volume charge density rho. what is the magnitude of the electric field produced by the charged sphere inside the sphere at a radial distance r from the sphere’s center, where 0 < r < r?

State one advantage and one disadvantage of using a plane mirrior as a driving mirrior

Which best represents the law of conservation of mass ?

Consider each of the electric- and magnetic-field orientations given next. in each case, what is the direction of propagation of the wave? a)\vec ein the +xdirection,\vec bin the +ydirection. choose+ x direction- x direction+ y direction- y direction+ z direction- z direction b)\vec ein the -y direction,\vec bin the +x choose+ x direction- x direction+ y direction- y direction+ z direction- z direction c)\vec ein the +z direction,\vec bin the -x direction. choose+ x direction- x direction+ y direction- y direction+ z direction- z direction d)\vec ein the +y direction,\vec bin the -z direction. choose+ x direction- x direction+ y direction- y direction+ z direction- z direction