A wire carries a current of 15.0 A in a direction that makes an angle of 23.00 with the direction of a magnetic eld of strength 0.400 T. Find the magnetic force on a 5.00 m length of the wire. i at Your response differs from the correct answer by more than 100%. N Sodium ions (Na+) move at 0.842 m/s through a bloodstream in the arm of a person standing near a large magnet. The magnetic field has a strength of 0.254 T and makes an angle of 47.0 with the motion of the sodium ions. The arm contains 115 cm3 of blood with a concentration of 2.50 x 1020 Na+ ions per cubic centimeter. If no other ions were present in the arm, what would be the magnetic force on the arm? 121.57 ;x Your response differs from the correct answer by more than 10%. Double check your calculations. N At the equator, near the surface of Earth, the magnetic eld ls approximately 75.0 pT northward and the electric field is about 110 NC downward in fair weather. Find the gravitational, electric. and magnetic forces on an electron with instantaneous velocity of 6.00 x 105 rm's directed to the east in this environment. gravitational I N - I electric - g! N I _ x magnetic sponse differs from the correct answer by more than 10%. Double check your calculations. N I A singly charged positive ion has a mass of 2.58 x 10'26 kg. After being accelerated through a potential difference of 240 V, the ion enters a magnetic field of 0.495 T, in a direction perpendicular to the field. Calculate the radius of the path of the ion in the field. i: x Your response differs significantly from the correct answer. Rework your solution from the beginning and check each step carefully. cm An electron moves in a circular path perpendicular to a magnetic field of magnitude 0.240 T. If the kinetic energy of the electron is 4.10 x 10-191, find the speed of the electron and the radius of the circular path. {a} the speed of the electron \\ mfs {b} the radius of the circular path :um