Question

When a 480 Hz. tuning fork and a piano key are struck together, four beats are heard. When a 470 Hz. tuning fork and the same piano key are struck, six beats are heard. What is the frequency of the piano key? unknown piano key = ________ Hz

475
476
477
478

Answer 1

476 is the answer you guys

Step-by-step explanation:

odessy ware said it was right

Answer 2

476

Step-by-step explanation: