The quality of a musical note has to do with its
A) loudness.
B) frequency.
C) harmonics.
D) amplitude.
E) none of the above
Answer: C
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A hollow conducting sphere of radius 12 cm had a charge of
C placed on it. What is the potential at the center of the sphere?
A. 0 V
B. 24 V
C. 
D. 
E. infinite
Although plutonium alone is chemically toxic, it is not toxic when
A) oxidized. B) ionized. C) subcritical. D) none of the above
A camera lens that covers the film with a field of view that corresponds approximately to that of normal vision is referred to as a
A) normal lens. B) telephoto lens. C) wide-angle lens. D) zoom lens. E) digital lens.
Ocean tides are waves that have a period of 12 hours and a speed of 750 km/hr. What is their wavelength?
A) 9000 km B) 32,400 km C) 9000 m D) 32,400 m E) 2,500 m