An electron is moving with a constant horizontal velocity of 2.00×10^3m/s near the surface of the Earth.?

An electron is moving with a constant horizontal velocity of 2.00×10^3m/s near the surface of the Earth.?



An electron is moving with a constant horizontal velocity of 2.00×10^3m/s near the surface of the Earth.? 

A) find the force of gravity on the electron  
B) what is the net force on the electron  
C)what electric field acting on the electron is required to maintain this state of motion( magnitude and direction)  
D) Explain what would happen if a proton were placed at rest in the same electric field. Find the magnitude and direction of the net force acting on the proton.  

Please help. Thank you





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