Please help with these 2 questions. Double check your answers! Explain your answers for the 2nd picture!

Note: Be careful with part e in the 2nd picture. They are asking about the brightness.

A particle with charge 6.98 x 10 8 C is moving in a region where there is a uniform 0.810 T magnetic field in the +x-direction. At a particular instant, the velocity of the particle has components Vr = -1.71 x 104 m/s, Vy = 2.98 x 104 m/s and v2 - 5.12 x 104 m/s. What are the components of the force on the particle at this time?In the circuit shown in the figure, three identical light bulbs are connected to a flashlight battery. (a) How do the brightnesses of the bulbs compare? (b) Which light bulb has the greatest current passing through it? (c) Which light bulb has the greatest potential difference between its termi- nals? (d) What happens if bulb A is unscrewed (clearly bulb A goes out, but what happens to the brightness of bulbs B and C)? (e) What happens if bulb C is unscrewed (clearly bulb C goes out, but what happens to the brightness of bulbs A and B)? + B C