Two particles, an electron and a proton, are initially at rest in a uniform electric field of magnitude 558 N/C. If the particles are free to move, what are their speeds (in m/s) after 46.8 ns

Which two objects have the greatest gravitational force acting between them

If steel is more dense that lake water, why can a boat float

Light that is polarized along the vertical direction is incident on a sheet of polarizing material. only 96% of the intensity of the light passes through the sheet and strikes a second sheet of polarizing material. no light passes through the second sheet. what angle does the transmission axis of the second sheet make with the vertical?