A 6.0-mF capacitor is attached to a 20-V power supply. How much energy is stored in the capacitor?
a. 2.0 × 10^-3 J
c. 2.0 × 10^-4 J
b. 5.2 × 10^-4 J
d. 1.2 × 10^-3 J
D
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This image shows Pluto photographed by the New Horizons spacecraft in 2015. What did scientists find most surprising when they saw this image?
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Why can't Thomasin find any constellations she recognizes?
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A simple pendulum has a period of 1.0 s. What is the pendulum length? (g = 9.8 m/s2)
a. 0.25 m c. 0.99 m b. 0.39 m d. 1.0 m
In China tonight the Moon phase is first quarter, so tonight for you the Moon phase is ______
a. waxing gibbous b. first quarter c. new d. waxing crescent