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22.04.2020 •
Physics
The Mistuned Piano Strings Two identical piano strings of length 0.800 m are each tuned exactly to 480 Hz. The tension in one of the strings is then increased by 1.0%. If they are now struck, what is the beat frequency between the fundamentals of the two strings? SOLUTION Conceptualize As the tension in one of the strings is changed, its fundamental frequency changes. Therefore, when both strings are played, they will have different frequencies and beats be heard. Categorize We must combine our understanding of the waves model for strings with our new knowledge of beats.
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Ответ:
Complete Question
The complete question is shown on the first uploaded image
The answer is
% higher than
% lower than
Explanation:
From the question we are told that
The first string has a frequency of
The period of the beat is
Generally the frequency of the beat is
Substituting values
From the question
for having a higher tension
So
From the question
Substituting values
% higher than
For having a lower tension
So
From the question
Substituting values
% lower than
Ответ:
Explanation:
so sorry
don't know but please mark me as brainliest please