can someone help me this please. thank you!

(5%) Problem 12: A negative charge of q = -8.1 x 10'17C and m = 5.8 x 10'26 kg enters a magnetic eld B = 0.25 T with initial velocity v = 310 m/s, as shown in the gure. The magnetic eld points into the screen . Randomized Variables q = -8.1 x 10'17C m = 5.8 x 10-26 kg B=0.25T v=310mls 13% Part (a) Which direction will the magnetic force be on the charge? Downward. A 13% Part (b) Express the magnitude of the magnetic force, F, in terms of 4, v, and B. A 13% Part (c) Calculate the magnitude of the force F, in newtons. A 13% Part (d) Under such a magnetic force, which kind of motion will the charge undergo? A 13% Part (e) Express the centripetal acceleration of the particle in terms of the force F and the mass mi A 13% Part (0 Calculate the magnitude of a, in meters per square second t/ Correct! A 13% Part (g) Express the radius, R, of the circular motion in terms of the centripetal acceleration a and the speed v. X X X X X X X X X It ltllccxpcrttuxm A 13% Part (h) Calculate the numerical value of the radius R, in meters R: Grade Summary Deductions Potential 101