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A proton accelerates from rest in a uniform electric field of650 N/C. At some later time, its speedis 1.3 106 m/s.
a) Find the magnitude of the acceleration of the proton.
b) How long does it take the proton to reach this speed?
c) How far has it moved in that interval?
d) What is its kinetic energy at the later time?
A rabbit runs in a straight line with a velocity of +1.40 m/s for a period of time, rests for 12 s, and then runs again along the same line at +0.63 m/s for an unknown amount of time.
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