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A man, facing a high wall, notices an echo is heard 4.0 seconds after he...

A man, facing a high wall, notices an echo is heard 4.0 seconds after he makes a sharp sound. After walking 200 m directly towards the cliff, an echo is heard after 3.4 seconds. calculate (i)the speed of sound (ii) how far he was from the wall when he made his second observation of the echo.?
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Asked by King fresh on 30th May, 2020
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WAEC offline past questions - with all answers and explanations in one app - Download for free
WAEC May/June 2024 - Practice for Objective & Theory - From 1988 till date, download app now - 99995
Post-UTME Past Questions - Original materials are available here - Download PDF for your school of choice + 1 year SMS alerts
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WAEC offline past questions - with all answers and explanations in one app - Download for free
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WAEC Past Questions, Objective & Theory, Study 100% offline, Download app now - 24709
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