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13 June, 23:54

Paula drops a pebble into the ocean from a 120ft high cliff. Use the formula t=h--√4 to find how many seconds it takes for the pebble to reach the ocean. Round your answer to the nearest tenth of a second.

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  1. 14 June, 00:20
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    2.7 seconds

    Step-by-step explanation:

    We are asked to find how many seconds it takes for an object to fall from a height of 120ft. We will use the given formula, t=h--√4. Substituting h=120, we find

    t=120---√4=2.7

    So, the pebble reaches the ocean after 2.7 seconds.
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