Question 3 (1 point) In a spectrometer, a singly ionized molecule of isoflurane (molecular mass = 3. 06 x 10-25 6 kg) moves at a speed of 5. 0 X 10 m / sona circular path that has a radius of 0.1 m. What is the magnitude of the magnetic field that the spectrometer uses? a. 0.3 T Ob. 0.2 T on O c. 0.7 T Od. 0.4 T Oe. 0.1 TQuestion 4 (1 point) Suppose that an ion source in a mass spectrometer produces doubly ionized gold ions, each with a mass of 3.27 x 10-25 kg. The ions are accelerated from rest through a potential difference of 0.90 kV. Then, a 0.300-T magnetic field causes the ions to follow a circular path. What is the radius of the path? a. 0.35 m O b. 0.68 m c. 0.94 m O d. 0.52 m Oe. 0.10 m