Question1:Speaker A emits sound with an output power of 20 W. Speaker B emits with an output power of 80 W. Suppose you stand some distance, r, from speaker A. How far would you have to stand from speaker B to hear the same loudness of sound? For clarity, only one speaker is playing at a time , so we do not have to think about interference
Question2 :You send a transverse pulse down a slinky. A moment later you send a larger amplitude pulse down the same slinky.
a) Which pulse travels faster?
b) A fellow student argues, “We can make the second pulse catch up with the first one if we increase the tension in the slinky.” Are they correct? Explain.