Brittany stands between Ari and Cameron. Ari is 5.00 m to the left of Brittany and singing a high A note at 880 Hz with

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Brittany stands between Ari and Cameron. Ari is 5.00 m to the
left of Brittany and singing a high A note at 880 Hz with a power
of 0.0279 W. Cameron is 7.00 m to the right of Brittany and singing
a middle C at 261.6 Hz and 0.109 W. The air temperature is
13.0°C.
a) The intensity of sound at Brittany’s location
_______________________
b) The sound level at Brittany’s location
_______________________
c) Brittany begins walking to the right at 2.00 m/s. What
frequency of sound will she hear from Ari and Cameron?
Ari: _______________________ Cameron: ___________