A worker drops a wrench from the top of a tower 80 m tall. What is the velocity when the wrench strikes the ground? Round to the nearest 100ths place.

  39.60 m/s

Explanation:

An appropriate formula is ...

  v = √(2gd) = √(2·9.8 m/s^2·80 m) ≈ 39.60 m/s

the first, second, and fifth options

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i have found an answer to your question but use it as information.

information: because weak acids/bases have low concentration of hydrogen ions, the addition of water has a large impact on the ph. 2. a difference in 1 unit is a 10x difference in concentration for example; a liquid with ph of 3 is 10x more acidic than a liquid with a ph of 4. therefore, a liquid with a ph of 3 is stronger.

best of luck!