A motor and a generator are
A. similar devices
B. very different devices with different applications
C. forms of transformers
D. energy sources
Ans: A. similar devices
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Which of these will the Sun probably become in the very distant future?
A) Hypernova B) Supernova C) Pulsar D) Planetary nebula E) Nova
Many of the smallest Jovian moons are most likely
A) captured asteroids and comets B) captured objects from outside the solar system C) small clumps of gas left over from the formation of the host planet D) fragments of other moons
Falling objects [dropped near the earth's surface, neglecting air resistance] all fall at
A) an acceleration that is larger for more massive objects. B) the same constant [or unchanging] acceleration. C) zero acceleration. D) the same constant [or unchanging] velocity. E) the same constant (or unchanging) speed.
In a cooling magma, which minerals are the first to crystallize?
What will be an ideal response?