025 10.0 points A proton moves perpendicularly to a mag- netic field that has a magnitude of 4.70 10 -2 T. The charge on a proton is 1.601019 C. What is the speed of the particle if the magnitude of the magnetic force on it is 5.34 10-14N? Answer in units of m/s. 039 10.0 points A copper strip (8.47 x 1022 electrons per cu- bic centimeter) 3.5 cm wide and 0.03 cm thick is used to measure the magnitudes of un- known magnetic fields that are perpendicular to the strip. The charge on the electron is 1.6 10-19 C. Find the magnitude of B when the current is 17 A and the Hall voltage is 1 V. Answer in units of T. -26 004 (part 1 of 2) 10.0 points A singly ionized 24Mg ion of mass 3.983 x 10 kg is accelerated through a 2 kV po- tential difference and deflected in a magnetic field of 569 G in a mass spectrometer. The charge on the ion is 1.6 10-19 C. Find the radius of curvature of the orbit for the ion. Answer in units of cm. 005 (part 2 of 2) 10.0 points What is the difference in radius for 26 Mg ions and for 24Mg ions? (Assume that their mass ratio is 26:24.) Answer in units of cm.