The very earliest Greek cosmological theory, several centuries before Ptolemy, stated that
A) the planets revolve in loop-the-loops [circles within circles] around Earth.
B) the entire universe is in reality just the inside of a giant cosmic frog.
C) the planets go in simple circles around the sun.
D) the planets go in simple circles around Earth.
E) the planets revolve in loop-the-loops around the sun.
D
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A. Bulb A glows but bulb B goes out. B. Bulb B glows but bulb A goes out. C. Both bulbs continue to glow. D. Both bulbs go out. E. One needs more information to answer.
A block of wood with a piece of iron tied to the top of it floats in a bucket of water. If the wood and iron are turned over so that the iron is submerged beneath the wood, the water level at the side of the bucket
A) rises. B) falls. C) remains the same.
During the eighteenth and nineteenth centuries, attempts to precisely measure the astronomical unit relied largely on rare
A) total solar eclipses. B) transits of the inferior planets across the Sun. C) passages of comets close to the Earth. D) maximum elongations of Venus. E) oppositions of Mars.
What 3 parts of the EM spectrum does hubble work in?
What will be an ideal response?