The Great Wall is a huge sheet of galaxies that stretches for over 100 Mpc
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TRUE
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The electric field in the region of space shown is given by 
where y is in m. What is the magnitude of the electric flux through the top face of the cube shown?
?
?
A. 90 N ? m2/C B. 6.0 N ? m2/C C. 54 N ? m2/C D. 12 N ? m2/C E. 126 N ? m2/C
What are the most common hydrogen compounds in the atmospheres of the jovian planets?
a. water (H2O), methane (CH4), ammonia (NH3) b. water and carbon dioxide (CO2) c. water and carbon monoxide (CO) d. sulfur dioxide (SO2) and propane (C3H8) e. none of the above
How much energy is necessary to place three +2.0-µC point charges at the vertices of an equilateral triangle of side 2.0 cm if they started out extremely far away? (k = 1/4??0 = 9.0 × 109 N ? m2/C2 )
A) 4.5 J B) 5.4 J C) 6.7 J D) 7.6 J
The current drawn by the heater is 10 amperes
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