Pls help me answer the following questions

Problem 2 Magnetic force on a proton A proton having a speed of 5.0 x 106m/s in a magnetic field feels a force of 8.0 x 10-14/ toward the " (up) west when it moves vertically upward (see Fig. at the Moving into right). When moving horizontally in a northerly page (nonb) (west) direction, it feels zero force (see Fig. b). Determine the magnitude and direction of the magnetic field in this (b) region. (The charge on a proton is q = te = 1.6 x 10-19C). Approach Since the proton feels no force when moving north, the field must be in a north- south direction. In order to produce a force to the west when the proton moves upward, the right-hand rule tells us that B must point toward the north. (Your thumb points west and the outstretched fingers of your right-hand point upward only when your bent fingers point north.) The magnitude of B is found using this formula, F = quB sin 0.Problem 3 Electron's path in a uniform magnetic field An electron travels at 2.0 x 107m/s in a plane perpendicular to a uniform 0.010 T magnetic field. Describe its path quantitatively. (Mass of an electron is 9. 1 x 10-31kg, the charge in an electron is 1.6 x 10-19C.) Approach 23 The electron moves at speed v in a curved path and so must have a centripetal acceleration a - -. We find the radius of curvature using Newton's second law. The force is given by equation, F - qvB sin 0 with sin 0=1, F = quB. We insert F and a into Newton's second law: EF = ma muz qvB =- We solve for r and find r= mDeepen Activity: What's the problem? Problem 1 Calculating Magnetic Force on a Current-Carrying Wire: A Strong Magnetic Field Calculate the force on the wire shown in the figure, given B=1.50 T, L=5.00 cm, and I=20.0 A. Strategy The force can be found with the given information by using F = IlBsino and noting that the angle 0 between I and B is 90, so that sin 0=1. The units for tesla are 1T N A.m