A rectangular frame that is 2/3 feet Long has an area of 1/2 square feet. What is the width

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Refer to interactive solution 17.45 to review a method by which this problem can be solved. the fundamental frequencies of two air columns are the same. column a is open at both ends, while column b is open at only one end. the length of column a is 0.504 m. what is the length of column b?

How do you find principle and simple interest