A transformer requires
A) alternating voltage.
B) direct current.
C) both of these
D) none of the above
Answer: A
Physics & Space Science
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Which of the following makes a meson?
a) a photon and a graviton b) an up quark and an anti-down quark c) three up quarks d) a charm quark and a strange quark e) two down quarks and an anti-up quark
Physics & Space Science
According to the main sequence turn-off points of the oldest globular clusters, they are about:
A) 4.5 billion years old. B) 6.8 billion years old. C) 10 billion years old. D) 12 billion years old. E) 16 billion years old.
Physics & Space Science
How can a white dwarf be hotter than our Sun, yet much less luminous?
What will be an ideal response?
Physics & Space Science
Conservation of ___________ is observed in all interactions
a. baryon number b. lepton number c. strangeness d. charm e. beauty
Physics & Space Science