Which statement is true for a sound wave entering an era of a warmer air ?
A. The wave travels faster and with the same wavelength
B. The wavelength travels at the same speed but with an increased wavelength
C. The wave travels at the same speed and with the same wave length
D. The wave travels slower and with an increased wavelength
E. The wave travels faster and with an increased wavelength
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Answered by BosonDoll
Answer:E Molecules at higher temperatures have more energy, thus they can vibrate faster. Since the molecules vibrate faster, sound waves can travel more quickly. Wavelength always increases with speed, as frequency is fixed at source and speed= freq x wavelength The speed of sound in room temperature air is 346 meters per second.