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College Physics

11th Edition
Raymond A. Serway + 1 other
ISBN: 9781305952300

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College Physics

11th Edition
Raymond A. Serway + 1 other
ISBN: 9781305952300
Textbook Problem

A proton accelerates from rest in a uniform electric field of 640. N/C At some later time, its speed is 1.20 × 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)

To determine
The magnitude of acceleration of the proton.

Explanation

Formula to calculate the magnitude of acceleration of the proton is,

a=qEm

  • q is the charge of proton.
  • E is the electric field.
  • m is the mass of proton.

Substitute 1.6×1019C for q, 640 N/C for E and 1.673×1027kg for m.

a=(1

(b)

To determine
The required time.

(c)

To determine
The required distance.

(d)

To determine
The kinetic energy.

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