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A uniform electric field exists in the region between two oppositely charged parallel plates 1.58cm apart. A proton is released from rest at the surface of the positively charged plate and strikes the surface of the opposite plate in a time interval 1.53A x 110-6s.
a) Find the magnitude of the electric field.
Use 1.60A x 110-19C for the magnitude of the charge on an electron and 1.67A x 110-27kg for the mass of a proton
b) Find the speed of the proton at the moment it strikes the negatively charged plate.
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