When a pair of identical lamps are connected in parallel
A) voltage across each is the same.
B) current in each is the same.
C) power dissipated in each is the same.
D) all of the above
Answer: D
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A) a type of energy that is different from light and that has been detected from sources such as merging neutron stars and black holes B) a form of light with higher energy than gamma rays C) a form of light with lower energy than radio waves D) the name we give to electromagnetic waves that come from astronomical objects that have gravity
To analyze single-slit diffraction, what new assumption not made in the Young double-slit experiment must be made?
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Where are most elements heavier than hydrogen and helium made?
A) in the gas between the stars B) in the cores of stars, in supernovae, and during neutron star mergers C) All elements were made about 5 minutes after the universe began. D) in the cool atmospheres of red giant stars E) in white dwarfs
Why do we see a gravitational redshift in the spectrum of the Sun?
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