A 1.30-m long gas column that is open at one end and closed at the other end has a fundamental resonant frequency 80.0 Hz. What is the speed of sound in this gas?
A) 104 m/s
B) 61.5 m/s
C) 26.0 m/s
D) 246 m/s
E) 416 m/s
E
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A) smaller. B) zero. C) larger.
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If 150 kcal of heat raises the temperature of 2.0 kg of a material by 400°F, what is the specific heat capacity of the material?
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You need an ideal transformer to reduce a voltage of 150 V in the primary circuit to 25 V in the secondary circuit. The primary circuit has 130 windings and the secondary circuit is completed through a 55-? resistor
How many windings should the secondary circuit contain?