Recent content by Aboramou

Hi! Thank you for your help. Unfortunately, I still haven't solved the problem. I could just substitute frequency of the sound into the equation ω=2πƒ and multiply it by 60 to get the angular velocity in rpm, but the answer I get is different from the answer given in my book (should be 825 rpm)...

Homework Statement A thin card produces a musical note when it is held lightly against the spokes of a rotating wheel. If the wheel has 32 spokes, how quickly must it rotate, in revolutions per minute, in order to produce the A above middle C (i.e. 440 Hz)? Homework Equations ω=2πƒ; ƒ=1/T...