Current Attempt in Progress

A certain commercial mass spectrometer is used to separate uranium ions of mass $3\mathrm{.}92{10}^{-25}kg$ and charge $3\mathrm{.}20{10}^{-19}C$ from related species. The ions are accelerated through a potential difference of $112$ kV and then pass into a uniform magnetic field, where they are bent in a path of radius $0\mathrm{.}795$ m $.$ After traveling through $180$ and passing through a slit of width $0\mathrm{.}914$ mm and height $1\mathrm{.}30$ cm $,$ they are collected in a cup. $($a$)$ What is the magnitude of the $($perpendicular$)$ magnetic field in the separator? If the machine is used to separate out $0\mathrm{.}804$ mg of material per hour, calculate $($b$)$ the current of the desired ions in the machine and $($c$)$ the thermal energy produced in the cup in $1\mathrm{.}28$ h $.$

$($a$)$ Number $$ Units $$

$($b$)$ Number $1$ Units $$

$($c$)$ Number $$ Units $$