Alan and Beverly are on opposite sides of a large room when - says something to
Beverly. Beverly does not hear him, so - repeats the message louder and Beverly now
hears it. Which of the following could be different about the second sound wave
compared to the first that allows Beverly to hear it?

The second wave travels to Beverl more
. . . . y The second wave reflects more off the walls
qunckly, so less energy IS dissupated by the
. of the room.
time the wave reaches her.
The air molecules disturbed b the second
. y The air molecules disturbed by the second
wave undergo a greater displacement from
. . . . . . wave are. on average, more closely spaced.
their equnllbrium posntions.