Both problems please

An electron is accelerated through 2.45 x 10" V from rest and then enters a uniform 1.40-T magnetic field. (a) What is the maximum magnitude of the magnetic force this particle can experience? X What is the speed of the electron after it has been accelerated from rest through this potential difference? N (b) What is the minimum magnitude of the magnetic force this particle can experience? O N Need Help? Read It Watch It Submit Answer 3. [0/1.76 Points] DETAILS PREVIOUS ANSWERS SERPSE10 28.1.OP.005. MY NOTES ASK YOUR TEACHER PRACTICE ANOTHER A physicist builds an apparatus to measure the charge to mass ratio of ions. An ion is first accelerated to a speed of 5.00 x 10 m/s. It then passes through a region of magnetic field, with a magnitude of 2.51 x 10 -T, perpendicular to the ion's velocity. Because the ion is moving so fast, it is only in the presence of the magnetic field for 2.00 x 10's. Upon exiting the magnetic field, the scientist measures that the ion was deflected a distance of 3.00 cm in a direction perpendicular to its initial velocity. (a) What is the ratio of the absolute value of the ion's charge to its mass (in C/kg)? Assume the velocity change is small, and that the component of the velocity along the ion's original direction does not change noticeably. m What is the magnitude of the magnetic force on the ion? What is the acceleration? If the velocity change in the original direction is negligible, can you approximate the acceleration as constant? What constant acceleration kinematics formula relates the deflection distance and time? c/kg (b) Suppose the physicist determines the ion is singly charged; that is, the magnitude of its charge is that of a proton. What is the mass of the ion (in kg)? X Use the ratio you found in part (a) and the charge of a proton to calculate the mass. kg