Vision Problems: A person uses corrective glasses of power -8.5 D that are worn 2.0 cm from her eye.(a) Is she nearsighted or farsighted?(b) What is her far point without glasses?
What will be an ideal response?
(a) nearsighted (b) 14 cm
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A volume of air that is compressed with no heat entering or leaving becomes
A) cooler. B) remain unchanged. C) warmer. D) none of the above
In general, wind direction ________ between adjacent bands in Jupiter's atmosphere
Fill in the blank(s) with correct word
Suppose you have three identical lightbulbs, some wire, and a battery. You connect one lightbulb to the battery and take note of its brightness. You add a second lightbulb, connecting it in parallel with the previous lightbulbs, and again take note of the brightness. Repeat the process with the third lightbulb, connecting it in parallel with the other two. As the lightbulbs are added, the power
delivered by the battery (neglect the battery’s internal resistance) 1.increases. 2.decreases. 3.remains the same. 4.Need more information.
What determines what element a configuration of protons, neutrons and electrons will be is
1) the number of protons, 2) the number of neutrons, 3) the mass of protons and neutrons, and the principal variable that determines whether the atoms will form a solid, liquid, gaseous, or plasma phase is 4) atomic number. 5) atomic weight. 6) density. 7) temperature.