What does a spectroscope do to the light coming from an atom?
Ans: The spectroscope separates the light into its color components.
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The contact force F between the two cylinders in Problem 3.3 may be expressed in terms of load variable W as:
(A) 1.82W (B) 2.5W (C) 2.1W (D) 1.52W
Conservation of ____________ is observed in strong and electromagnetic interactions but not in weak interactions
a. baryon number b. lepton number c. strangeness d. charm e. beauty
An astronomical telescope has an objective of diameter 20 cm with a focal length of 180 cm. The telescope is used with an eyepiece of focal length 3.0 cm. The magnifying power of the telescope is
A) 360 X. B) 60 X. C) 540 X. D) 7 X. E) 180 X.
Which of the following statements best describes the concept of entropy?
A) Energy has a tendency to disperse. B) Energy is neither created nor destroyed. C) The entropy of the universe is constantly decreasing. D) The energy released in a chemical reaction is the same as the difference in the energy of the bonds broken and formed. E) Energy has a tendency to remain in one place.