Bob is talking to Alice by using a tin can telephone, which comprises of two steel cans joined by a 20-m-long taut steel wire. The wire consists of a linear density of 7.85 g/m, and the tension on the wire is around 29.5 N. The sound waves leave Bob’s mouth, are collected by the can on the left, and then make vibrations in the wire, which travel to Alice’s can and are transformed back into sound waves in the air. Alice hears both the sound waves which have traveled via the wire (wave 1) and those which have traveled via the air (wave 2), bypassing the wire. Determine the wave which arrives sooner and by how much?