A 5.0-?C point charge is placed at the 0.00 cm mark of a meter stick and a -4.0-?C point charge is placed at the 50 cm mark. At what point on a line joining the two charges is the electric field due to these charges equal to zero?
What will be an ideal response?
Answer: 4.7 m from the 0.00-cm mark
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The current shown flowing through each coil must be 
A. increasing. B. decreasing. C. remaining constant. D. One needs more information to say how it is varying.
What are constellations?
A) groups of galaxies gravitationally bound and close together in the sky B) groups of stars making an apparent pattern in the celestial sphere C) groups of stars gravitationally bound and appearing close together in the sky D) ancient story boards, useless to modern astronomers E) apparent groupings of stars and planets visible on a given evening
A student has made the statement that the electric flux through one half of a Gaussian surface is always equal to the flux through the other half of the Gaussian surface. This is
a. never true. b. never false. c. true whenever enclosed charge is symmetrically located at a center point, on a center line, or on a centrally placed plane. d. true whenever no charge is enclosed within the Gaussian surface. e. true only when no charge is enclosed within the Gaussian surface.
From your local latitude, what is the declination of a star that appears on the southern horizon (0° altitude)?