4. An idealised loudspeaker with a suspension system of stiffness/spring constant of 425N/m, dissipates an average power of 16W at its resonant frequency when driven by an oscillating force of magnitude 12N. Given the steady state equation of motion is given by: j(wt - 0) x = (F/joZm) e where the phase 0 is equal to 51.9° at a driving frequency of 18Hz, find: a). The mechanical resistance, Rm. b). The mass of the speaker cone, m. c). The resonant frequency, fo.

Power System Analysis and Design (MindTap Course List)
6th Edition
ISBN:9781305632134
Author:J. Duncan Glover, Thomas Overbye, Mulukutla S. Sarma
Publisher:J. Duncan Glover, Thomas Overbye, Mulukutla S. Sarma
Chapter2: Fundamentals
Section: Chapter Questions
Problem 2.27P: An industrial load consisting of a bank of induction motors consumes 50 kW at a power factor of 0.8...
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4. An idealised loudspeaker with a suspension system of stiffness/spring constant of
425N/m, dissipates an average power of 16W at its resonant frequency when driven
by an oscillating force of magnitude 12N. Given the steady state equation of motion is
given by:
X = = (F/jwZm) e
j(wt - 0)
where the phase 0 is equal to 51.9° at a driving frequency of 18Hz, find:
a). The mechanical resistance, Rm.
b). The mass of the speaker cone, m.
c). The resonant frequency, fo.
Transcribed Image Text:4. An idealised loudspeaker with a suspension system of stiffness/spring constant of 425N/m, dissipates an average power of 16W at its resonant frequency when driven by an oscillating force of magnitude 12N. Given the steady state equation of motion is given by: X = = (F/jwZm) e j(wt - 0) where the phase 0 is equal to 51.9° at a driving frequency of 18Hz, find: a). The mechanical resistance, Rm. b). The mass of the speaker cone, m. c). The resonant frequency, fo.
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