A particular type of fundamental particle decays by transforming into an electron e- and a positron e (same amount of charge as e- but with positive sign). Suppose the decaying particle is at rest in a uniform magnetic field B of magnitude 3.53 mT and the e- and e move away from the decay point in paths lying in a plane perpendicular to B. How long after the decay do the e- and e collide

What is the role of lenses in microscopy?

Large electric fields in cell membranes cause ions to move through the cell wall. the field strength in a typical membrane is 1.0 x 10 7 n/c. what is the magnitude of the force on a calcium ion with charge +e? what is its acceleration? is it possible for a particle with the same charge as as calcium to have a different acceleration if placed at this location? what would change the acceleration: mass of the particle? diameter of the particle?

Another word for electromagnetic energy is a. heat b. force c. matter d. radiation