A particle known as a pion lives for a short time before breaking apart into other particles. Suppose a pion is moving at a speed of 0.987c, and an observer who is stationary in a laboratory measures the pion's lifetime to be 3.4×10−8 s. (a) What is the lifetime according to a hypothetical person who is riding along with the pion? (b) According to this hypothetical person, how far does the laboratory move before the pion breaks apart? (a) Number Units (b) Number Units
![The figure shows a particle that carries a charge of q0 = −2.87×10−6 C. It is moving along the +y axis at a speed of v = 4.73×106 m/s. A magnetic field B→ of magnitude 3.48×10−5 T is directed along the +z axis, and an electric field E→ of magnitude 116 N/C points along the −x axis. Determine (a) the magnitude and (b) direction (as an angle within x - y plane with respect to +x-axis in the range (−180∘, 180∘]) of the net force that acts on the particle. (a) Number Units (b) Number](https://www.doubtrix.com/uploads/editor/5183224650ntIuFuIXjL.jpg)
