In the operating room, anesthesiologists use mass spectrometers tomonitor the respiratory gases of patients undergoing surgery. Onegas that is often monitored is the anesthetic isoflurane (molecularmass = 3.06 x 10-25 kg). In a spectrometer, a singleionized molecule of isoflurane (charge = + e) moves at aspeed of 7.35 x 103 m/s on a circular path that has aradius of 0.141 m. What is the magnitude of the magnetic field that the spectrometer uses?