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College home work please help !

  1. Sep 12, 2005 #1
    College home work ..please help ASAP! :)

    1. A proton accelerates from rest in a uniform electric field of 639 n/c. At some time later , its speed is 1.78 * 10^6 m/s.

    What is the magnitude of the acceleration of the proton ? Answer in units of m/s^2.

    2. How long does it take the proton to reach this speed ? answer in units of us.

    3. How far has it moved in this time interval ?
    Answer in units of m

    4. What is the kinetic energy at the later time ?
    Answer in units of J.

    :surprised :surprised :surprised :surprised :surprised :surprised

    Please Help ..

    Thank you
     
  2. jcsd
  3. Sep 12, 2005 #2

    Gokul43201

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