A proton falls through a potential drop of 400 V. How much is the change of potential energy of this proton in falling through this potential drop?
A) 6.4 × 10-16 J
B) -6.4 × 10-16 J
C) 17 × 10-16 J
D) -4000 J
E) 4000 J
B
Physics & Space Science
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Spectra from neutral atoms compared with spectra from ionized atoms of the same element
A) are the same. B) are slightly redshifted. C) are slightly blueshifted. D) have different sets of spectral lines. E) have the same sets of spectral lines but different widths for those lines.
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Explain why we have seasons and compare/contrast the cycle of seasons for both hemispheres
What will be an ideal response?
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No evidence of impact craters has been found on Venus
Indicate whether the statement is true or false
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What is the atomic number of a neutral atom that has an electron configuration of 1s2 2s2 2p6 3s2 3p2?
A) 5 B) 11 C) 14 D) 20
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