23.5 A small metal sphere, carrying a net charge of q (1) = -2.60\mu C, is held in a stationary position by insulating supports. A second small metal sphere, with a net charge of q_(2) = -7.50\mu C and mass 1.50g, is projected toward q_(1). When the two spheres are 0.800m apart, q_(2), is moving toward q_(1) with speed 22.0(m)/(s) (Fig. E23.5). Assume that the two spheres can be treated as point charges. You can ignore the force of gravity. (a) What is the speed of q_(2) when the spheres are 0.420m apart? (b) How close does q_(2) get to q_(1) ?

Elements Of Electromagnetics
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Author:Sadiku, Matthew N. O.
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23.5 A small metal sphere, carrying a net charge of q
(1) = -2.60\mu C, is held in a stationary position by
insulating supports. A second small metal sphere, with a
net charge of q_(2) = -7.50\mu C and mass 1.50g, is
projected toward q_(1). When the two spheres are
0.800m apart, q_(2), is moving toward q_(1) with
speed 22.0(m)/(s) (Fig. E23.5). Assume that the two
spheres can be treated as point charges. You can ignore
the force of gravity. (a) What is the speed of q_(2) when
the spheres are 0.420m apart? (b) How close does q_(2)
get to q_(1) ?
Transcribed Image Text:23.5 A small metal sphere, carrying a net charge of q (1) = -2.60\mu C, is held in a stationary position by insulating supports. A second small metal sphere, with a net charge of q_(2) = -7.50\mu C and mass 1.50g, is projected toward q_(1). When the two spheres are 0.800m apart, q_(2), is moving toward q_(1) with speed 22.0(m)/(s) (Fig. E23.5). Assume that the two spheres can be treated as point charges. You can ignore the force of gravity. (a) What is the speed of q_(2) when the spheres are 0.420m apart? (b) How close does q_(2) get to q_(1) ?
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