31. (a) We solve for Bfrom m = B2qx2/8V(see Sample Problem 28-3): BVmqx=82. We evaluate this expression using x= 2.00 m: B=×××=−−8 100 10392 10320 102000 495325192VkgCmTchchbg...(b) Let Nbe the number of ions that are separated by the machine per unit time. The current is i = qNand the mass that is separated per unit time is M = mN, where mis the mass of a single ion. Mhas the value M=×=×−−100 103600278 1068kgskg sSince N = M/mwe have iqMm==
This is the end of the preview. Sign up
access the rest of the document.