Doubling the capacitance of a capacitor that is holding a constant charge causes the energy stored in that capacitor to
A) quadruple. B) decrease to one-half.
C) double. D) decrease to one-fourth.
B
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The parallax of the star 75 Leo is 0.10 and its apparent visual magnitude is +5.18 . The absolute visual magnitude of 75 Leo is ____________________
Fill in the blank(s) with correct word
Charon's orbit:
A) lies exactly in Pluto's orbital plane. B) is highly inclined to Pluto's orbital plane. C) is perpendicular to Pluto's equator. D) is retrograde. E) has not been determined yet.
A rod of 2.0-m length and a square (2.0 mm × 2.0 mm) cross section is made of a material with a resistivity of 6.0 × 10^?8 ? / m. If a potential difference of 0.50 V is placed across the ends of the rod, at what rate is heat generated in the rod?
a. 3.0 W b. 5.3 W c. 8.3 W d. 1.3 W e. 17 W
Solar farms such as the Meinels' are not realistic visions of the energy future
What will be an ideal response?