How Does a Charged Bullet Respond to Earth's Magnetic Field?

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Faraji
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I have a packet of physics questions and there were to that I just couldn't solve, could anyone help me out with them please?

1. A 3.80-g bullet moves with a speed of 180m/s perpendicular to the Earth's magnetic flied of 5.00 X 10-5T. If the bullet possesses a net charge of 8.10X 10-9 C, by what distance will it be delfected from it's path due to it's magnetic field after it has traveled 1.00km

2. A high-voltage powerline operates at 500 000 V-rms and carries an rms current of 500 A. IF the resistance of the cable is 0.05Ω/km, what is the resistive power loss in 200km of the powerline?
 
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What forces act on the particles?
What are the relevant equations for these problems?