Intensity of Sound: By how many decibels does the intensity level of a sound increase when you triple the intensity of a source of sound?
A. 9.5 dB
B. 4.8 dB
C. 6.0 dB
D. 3.0 dB
E. 12 dB
Answer: B
Physics & Space Science
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The characteristic that distinguishes fermions from bosons is
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Physics & Space Science
The real image of an object is located 18.8 cm away from a concave mirror, which has a focal length of 8.20 cm. How far is the object from the mirror?
a. 10.6 cm b. 16.4 cm c. 6.88 cm d. 14.5 cm e. 18.8 cm
Physics & Space Science
A general principle of ionic compound formation is that the total ionic charge in the formula unit must be
a. 0. b. no greater than that of the metal ion. c. between +4 and –4. d. no less than that of the nonmetal ion.
Physics & Space Science
Discuss the limitations of the Bohr theory
What will be an ideal response?
Physics & Space Science