This mass spectrometer shown in the figure is separating twocopper isotopes in a beam of doubly-ionized copper:Cu-63, with an atomic mass of 62.93 u,Cu-65, with an atomic mass of 64.93 u.The magnetic field, B, in both the steering region and velocityselector, was set to a strength of 21 mT, and the electric fieldbetween the plates of the velocity selector was set at 1.2 kV/m.(a) At what speed do the Cu ions enter the steering region?m/sV =r =(c) Calculate the "turning radius" of each isotope.Cu-63: r =Cu-65: r =mImIIII(b) Write a symbolic expression for the ions' turning radius, r, in terms of E, B, and the mass-to-charge ratio, m/q.+(d) How many ions enter the collector each second if the detected beam current is 5.5 mA?ANAtions/second++detector A thin wire with linear mass density, λ = 0.477 g/cm, is suspendedfrom lightweight strings in a uniform magnetic field, B = 91.5 mT,that is oriented perpendicular to the wire as shown in the figure.The current in the wire is slowly increased until the wire"levitates" without putting any tension on the strings..●●Determine the amount and direction of the current in the wire when the strings go slack.I = 21.8 x A left●••●B●

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