Physics, 25.07.2021 21:00 katlynnschmolke
What is the frequency of the sound made by a siren having a disc with 32 holes and making 25 revolution per second? β
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Two pans of a balance are 24.1 cm apart. the fulcrum of the balance has been shifted 1.33 cm away from the center by a dishonest shopkeeper. by what percentage is the true weight of the goods being marked up by the shopkeeper? assume the balance has negligible mass. answer in units of %.
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Acid precipitation chemically weathering a 5.0-kg limestone rock . which coukd be the result ?
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What is the frequency of the sound made by a siren having a disc with 32 holes and making 25 revolut...
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