17.11 a piece of corroded metal alloy plate was found in a submerged ocean vessel. it was estimated that the original area of the plate was 800 cm2 and that approximately 2.6 kg had corroded away during the submersion. assuming a corrosion penetration rate of 200 mpy for this alloy in seawater, estimate the time of submersion in years. the density of the alloy is 7.9 g/cm3

gans

explanation:

vestigial organs (like your appendix) are organs that no longer serve a purpose.

the first american roller coaster was the mauch chunk switchback railway, built in the mountains of pennsylvania in the mid-1800s. the track, originally built to send coal to a railway, was reconfigured as a "scenic tour."

that tool is called an altimeter which measures your altitude which can be used to tell which atmosphere you are currently in, including the stratosphere.

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