The N14 nucleus consists of
A. 21 protons and 7 electrons.
B. 7 protons and 7 neutrons.
C. 14 protons.
D. 14 neutrons.
Answer: B
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Ohm's Law: What potential difference is required across an 8.0-? resistor to cause 2.0 A to flow through it?
Fill in the blank(s) with the appropriate word(s).
A 15-?F air-filled capacitor is connected to a 50-V voltage source and becomes fully charged. The voltage source is then removed and a slab of dielectric that completely fills the space between the plates is inserted
The dielectric has a dielectric constant of 5.0. (a) What is the capacitance of the capacitor after the slab has been inserted? (b) What is the potential difference across the plates of the capacitor after the slab has been inserted? What will be an ideal response?
Tomatoes have a higher specific heat capacity than dough. This means that when you bite into a hot pizza
A) the dough feels hotter than the tomato sauce. B) the tomato sauce feels hotter than the dough. C) since sauce and dough are at the same temperature, neither feels hotter.
A 120-V rms voltage at 60.0 Hz is applied across a capacitor and a 100-? resistor. If the impedance of this circuit is 200 ?, what is the average power of this circuit?
A) 278 W B) 72.0 W C) 36.0 W D) 100 W E) 200 W