Power: A battery is rated such that it provides 1.0 mW of power at 9.0 V when fully charged. How much current can it deliver?

A. 0.11 mA
B. 81 kA
C. 0.33 mA
D. 9.0 kA


Answer: A

Physics & Space Science

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Did Tycho's data prove that Kepler' theory was true?

A) No, because some of Tycho's observations were incorrect. B) No, because observations can never completely prove the truth of scientific theory. C) No, because Tycho's data disagreed with Kepler's theory. D) Yes, because Kepler's theory agreed with all of Tycho's data. E) Yes, because Tycho's data ruled out the competing theories of Ptolemy and Copernicus.

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Fill in the blank(s) with the appropriate word(s).

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Single convex spherical mirrors produce images that

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Physics & Space Science