A proton moves along the x-axis and enters a region of uniform magnetic field, where the field points along the positive z-axis. The magnetic field boundary is perpendicular to the xaxis, and the proton exits d = 1.3 mm away from the point of entry 1.6 ms later. Another proton enters the same region and exits a distance of 4.3 mm away from the point of entry. Find the speed of the first proton. Number mls. Find the magnetic field. Number T. How much time does the second proton take to exit the field? Number 5