Another type of mass spectrometer accelerates ions through an accelerator and then through a velocity selector before entering the spectrometer. If the perpendicular magnetic and electric fields in the velocity selector are given by B and E, and the magnetic field in the spectrometer is given by B', derive an expression for the mass of a particle of charge q and radius of curvature R, in terms of B, B', E, q, and R.

tube or goog with be a great resource to with that question

report!

explanation:

physics means: "the branch of science concerned with the nature and properties of matter and energy. the subject matter of physics, distinguished from that of chemistry and biology, includes mechanics, heat, light and other radiation, sound, electricity, magnetism, and the structure of atoms."

friction

explanation:

they us to move forward and backwards