question archive 8-8 (a) A police car, traveling at 60 mi/hr, passes an innocent bystander while sounding its siren, which has a frequency of 2000 Hz
8-8 (a) A police car, traveling at 60 mi/hr, passes an innocent bystander while sounding its siren, which has a frequency of 2000 Hz
Subject:PhysicsPrice: Bought3
8-8 (a) A police car, traveling at 60 mi/hr, passes an innocent bystander while sounding its siren, which has a frequency of 2000 Hz. What is the over-all change of frequency of the siren as heard by the bystander? (b) The police car continues down the street, the far end of which is blocked by a high brick wall. What does the bystander hear when the acoustic re?ections from the wall are superposed on the sound coming directly from the siren?
