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July 4, 2015

Homework Help: Physics

Posted by Ryan on Tuesday, April 13, 2010 at 1:52am.

Holding a glass of water filled to a depth of 7.8 cm you step into an elevator. The elevator moves upward with constant acceleration, increasing its speed from zero to 2.2 m/s in 3.1 s.

Find the change in pressure exerted on the bottom of the glass during the time the elevator accelerates.


I understand that you use the P_2_=P_at_+ p_water_(g+a)h!

I find P_2_ and I attained a difference of pressures to be 820. I keep rechecking my answers and submiting new ones, I just cant seem to understand it!

PLEASE HELP!

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