SOLUTION: Two frequencies of sound are played on an instrument governed by the function n(t)=8cos(20πt)cos(1000πt). What is the period and frequency of the fast and slow oscillation? What

Question 1161878: Two frequencies of sound are played on an instrument governed by the function n(t)=8cos(20πt)cos(1000πt). What is the period and frequency of the fast and slow oscillation? What is the amplitude?
Answer by ikleyn(52781) (Show Source): You can put this solution on YOUR website!
.


cos(a)*cos(b) =  + .


There are two harmonic modes in this instrument.


The low frequency is  Hertz = 490 Hertz;  the period is   of a second.


The high frequency is  Hertz = 510 Hertz;  the period is   of a second.


The amplitude is 4 units for each harmonic mode.

RELATED QUESTIONS
Two frequencies of sound are played on an instrument governed by the function... (answered by ikleyn,Alan3354)

Two frequencies of sound are played on an instrument governed by tge function... (answered by ikleyn)

Assume the profit earned by an artist in any given year is governed by the function... (answered by stanbon)

Assume the profit earned by an artist in any given year is governed by the function: P(n) (answered by stanbon)

Assume the profit earned by an artist in any given year is governed by the function... (answered by ankor@dixie-net.com)

Can someone help me solve this problem? I am having a hard time with it, can you explain... (answered by richwmiller)

There are n teams in a league and the number of games played is given by the polynomial... (answered by solver91311)

there are n teams in a league and the number of games played is given by the polynomial... (answered by ad_alta)

Musical notes can be represented by the trigonometric function y=sin(2pi qx) where q is... (answered by Alan3354)