Use the understanding of electric fields you developed above to deduce the electric field at the center of a circular loop of wire (radius r) with the same positive uniform charge density. specifically, is it:

Ared apple is illuminated by a blue light the apple will appear

Specific heat refers to the amount of heat required to change 1 gram of a substance by degree(s) celsius

An alpha particle with kinetic energy 12.5 mev makes a collision with lead nucleus, but it is not "aimed" at the center of the lead nucleus, and has an initial nonzero angular momentum (with respect to the stationary lead nucleus) of magnitude l = p0 b, where p0 is the magnitude of the initial momentum of the alpha particle and b=1.40×10−12 m. (assume that the lead nucleus remains stationary and that it may be treated as a point charge. the atomic number of lead is 82. the alpha particle is a helium nucleus, with atomic number 2.) what is the distance of closest approach?