Islamic scholars ________.
A. influenced the naming of bright stars
B. made detailed studies of the motions of the planets
C. developed algebra
D. studied and expanded upon older texts in astronomy
E. All of these choices are correct.
Answer: E
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Suppose you left five 100-W light bulbs burning in the basement for two weeks. If electricity costs 10
0ยข/kW?h, (a) how much did the electricity cost (to the nearest dollar) to leave those bulbs on, and (b) how many joules of electrical energy did they consume?
When a metal ring with a gap in the shape of the letter C is cooled, the gap becomes
A) wider. B) narrower. C) remains the same size.
Half-frozen fruit punch is always sweeter than the same fruit punch completely melted because
A) the sugar sinks to the bottom. B) crystallization is a purifying process. C) the half-frozen fruit punch is warmer. D) sugar molecules are less soluble in a half-frozen solution.
Because more massive stars have more gravitational energy, they can fuse heavier nuclear fuels
Indicate whether the statement is true or false