A particular type of fundamental particle decays by transforming into an electron e- and a positron e+. Suppose the decaying particle is at rest in a uniform magnetic field of magnitude 3.95 mT and the e- and e+ move away from the decay point in paths lying in a plane perpendicular to . How long after decay do the e- and e+ collide? Assume an electron and a positron are non-relativistic.

firearm identification is the process of analyzing the bullets and cartridge cases left at a crime scene to determine if they came from a particular firearm. marks on the bullets and cartridges may be common to every firearm of that type. these are called class characteristics.

that would be because of both gravity and friction. so     c

a is the best answer your welcome

pythagoras' theorem

square root (-5^2+9^2)

square root (25+81)

square root (106)

angle is tan^-1(9/5)

neg x, pos y