In glass, which of the following colors of light travels fastest?
a. red
b. blue
c. yellow
d. All three of the above travel at the same speed.
a
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One of the advantages of charge-coupled devices over photographic plates is that a CCD can record bright and faint objects on the same exposure
Indicate whether the statement is true or false
How does an antiquark differ from a quark?
A) It has a different flavor. B) It has opposite mass. C) It has a much greater mass. D) It has opposite charge. E) It is much more common in nature.
How far from a lens of focal length 50.0 mm must the object be placed if it is to form a virtual image magnified in size by a factor of three?
A) 33.3 mm B) 48.0 mm C) 38.3 mm D) 42.2 mm E) 54.4 mm
A system of 12 electrons and 18 protons has a net charge of
a. 9.6 × 10^-19 C. b. –9.6 × 10^-19 C. c. 17.6 × 10^-19 C. d. 6.0 × 10^-19 C. e. –17.6 × 10^-19 C.