If C1 = 30 µF, C2 = 25 µF, C3 = 15 µF, and ?V0 = 24 V, determine the energy stored by C2
a.
2.3 mJ
b.
4.8 mJ
c.
3.6 mJ
d.
1.3 mJ
e.
3.2 mJ
d
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Stars much less luminous than the Sun have
A) wider habitable zones, increasing the odds of finding habitable planets and much longer lifetimes allowing life to appear and evolve B) wider habitable zones, increasing the odds of finding habitable planets but lifetimes too short for life to appear C) narrower habitable zones, decreasing the odds of finding habitable planets and lifetimes too short for life to appear D) narrower habitable zones, decreasing the odds of finding habitable planets but much longer lifetimes allowing life to appear and evolve
What do we mean when we say that the Sun is in gravitational equilibrium?
A) The Sun always has the same amount of mass, creating the same gravitational force. B) The Sun maintains a steady temperature. C) The hydrogen gas in the Sun is balanced so that it never rises upward or falls downward. D) There is a balance within the Sun between the outward push of pressure and the inward pull of gravity.
If three 2.4-µF capacitors are connected in series, what is the combined capacitance?
a. 8.0E–7 F b. 1.4E–5 F c. 7.2E–8 F d. 2.4E–6 F e. 4.6E–6 F
When atmospheric pressure increases, what happens to the absolute pressure at the bottom of a pool?
A) It does not change. B) It increases by a lesser amount. C) It increases by the same amount. D) It increases by a greater amount. E) It depends on the depth of the pool.