An organ pipe is 80.0 cm long and is open at one end and closed at the other. The frequency of the third mode is 200 Hz higher than the frequency of the second mode. What is the velocity of sound?
A. 300 m/s
B. 320 m/s
C. 340 m/s
D. 360 m/s
E. 380 m/s
B. 320 m/s
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Conservation of Momentum: A 14-cm diameter champagne bottle rests on its side on top of a frictionless horizontal table. Suddenly, the cork pops and the bottle slides backward, covering a distance of 22.0 cm in 0.44 s. If the mass of the bottle is 500 times the mass of the cork, find the distance from the original position that the cork will land on the table. Neglect air resistance and assume that the cork is very small compared to the bottle.
A. 3000 cm B. 60 m C. 85 m D. 8.5 cm
If an electron is accelerated from rest through a potential difference of 1 200 V, find its approximate velocity at the end of this process. (e = 1.6 × 10^?19 C; me = 9.1 × 10^?31 kg)
a. 2.5E+7 m/s b. 2.1E+8 m/s c. 2.1E+7 m/s d. 4.2E+7 m/s e. 1.8E+8 m/s
A large ice mass that flows on a land surface under the influence of gravity is called
a. a glacier. b. a land slide. c. an ice river. d. none of these.
The formation of the early Appalachian Mountains began as a result of tectonic activity during the
A) Paleozoic era. B) Triassic era. C) Mesozoic era. D) Cenozoic era.