A 40-?C charge is positioned on the x axis at x = 4.0 cm. Where should a ?60-?C charge be placed to produce a net electric field of zero at the origin?
a. ?5.3 cm
b. 5.7 cm
c. 4.9 cm
d. ?6.0 cm
e. +6.0 cm
c
You might also like to view...
A heat treat furnace sketched in Figure 2-59 has an inside surface temperature of 1200ºC and an outside surface temperature of 60ºC. If the walls are assumed to be homogeneous with thermal properties the same as asbestos, estimate the heat transfer from the walls, excluding the door.
Significant Figures: The number of significant figures in 10,001 is
A. two. B. three. C. five. D. six.
The tarp covering on a trailer or truck puffs upward for fast-moving vehicles, which illustrates
A) Pascal's principle. B) Archimedes' principle. C) the principle of continuity. D) Bernoulli's principle.
A future use of space stations may be to provide hospitals for severely burned persons. It is very painful for a badly burned person on Earth to lie in bed. In a space station, the effect of gravity can be reduced or even eliminated
How long should each rotation take for a doughnut-shaped hospital of 200-m radius so that persons on the outer perimeter would experience 1/10 the normal gravitational pull of Earth? A) 91 min B) 8.7 min C) 4.6 min D) 1.5 min E) 0.011 min