A long hollow soda straw has a total charge Q uniformity distributed on the straw’s surface. Using Gauss’s law find: a) The electric field at a point inside the straw. b) The electric field at a point outside the surface of the straw, located a distance r from the center of the straw, but is still quite close to the straw’s surface (so that the straw appears to be quite long in each direction compared to the distance the point is from from the straw).