If an electron is accelerated from rest through a potential difference of 9.9 kV,what is its resulting speed? ,
=
,
A) 5.9 × 107 m/s
B) 4.9 × 107 m/s
C) 3.9 × 107 m/s
D) 2.9 × 107 m/s
Correct Answer:
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