Find the smallest separation distance between the speakers

Reference no: EM1348022

Q. Two speakers, one directly behind the other, are each generating a 151-Hz sound wave. What is the smallest separation distance between the speakers that will produce destructive interference at a listener standing in front of them? Take the speed of sound to be 342 m/s.

Q. A wheel free to rotate about its axis that is not frictionless is initially at rest. A constant external torque of +60 N·m is applied to the wheel for 23 s, giving the wheel an angular velocity of +520 rev/min. The external torque is then removed, and the wheel comes to rest 120 s later. (Include the sign in your answers.)

(a) Find the moment of inertia of the wheel.

(b) Find the frictional torque, which is assumed to be constant.

Reference no: EM1348022

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