Hello, the question is number 5 chapyer 19 in \"collegephysics\" by serway. At t

Question

Hello, the question is number 5 chapyer 19 in "collegephysics" by serway.   At the equator, near the surgace ofEarth, the magnetic field is approx. 50.0T northward, and theelectric field is about 100N/C downward in fair wearther. Find the gravitation, electric, and magnetic forces on an electronwith an instantaneous veloity of 6x106m/s directed tothe east in this environment. The solution states that the gravitation force is downward,the electric force is upward, and the magnetic force isdownward.   Can someone please explain how thesedirections for these forces were figured out? Thank you, Iwill rate life saver! Hello, the question is number 5 chapyer 19 in "collegephysics" by serway.   At the equator, near the surgace ofEarth, the magnetic field is approx. 50.0T northward, and theelectric field is about 100N/C downward in fair wearther. Find the gravitation, electric, and magnetic forces on an electronwith an instantaneous veloity of 6x106m/s directed tothe east in this environment. The solution states that the gravitation force is downward,the electric force is upward, and the magnetic force isdownward.   Can someone please explain how thesedirections for these forces were figured out? Thank you, Iwill rate life saver!

Explanation / Answer

   the gravitational force will be    Fg = m g         = ......... N(downward)    the electrical force will be    Fe = q E         = ......... N(upward)    the magnetic force will be    Fm = q v Bsin90o         = ......... N(downward)        Fm = q v Bsin90o         = ......... N(downward)    

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