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Interference and beats. Objectives Investigate and analyze characteristics of waves, including frequency and amplitude. Investigate and analyze behaviors. - ppt download
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![A text book of physics, for the use of students of science and engineering . lgreater distances the interval is such that two distinct sounds caneasily be heard. The name echo A text book of physics, for the use of students of science and engineering . lgreater distances the interval is such that two distinct sounds caneasily be heard. The name echo](https://c8.alamy.com/comp/2CE1D5N/a-text-book-of-physics-for-the-use-of-students-of-science-and-engineering-lgreater-distances-the-interval-is-such-that-two-distinct-sounds-caneasily-be-heard-the-name-echo-is-properly-reserved-for-this-case-inwhich-the-two-sounds-are-distinctly-separated-remembering-that-for-the-interval-to-be-v-sec-gt-tne-te-or-tnewave-to-travel-from-a-to-b-fig-642-is-sec-we-see-that-=-vel-of-sound-=-332-m-per-sec-40-ab-=-3tv-=-8-3-metres-4-u-700-sound-chap-echoes-occur-in-nature-and-are-produced-by-cliffs-hillsideswoods-or-even-by-large-buildings-when-the-distance-is-greateno-2CE1D5N.jpg)