Saturday

December 20, 2014

December 20, 2014

Posted by **please help with these practice problems** on Saturday, July 20, 2013 at 7:28pm.

- general physics -
**Elena**, Sunday, July 21, 2013 at 12:09pmp = 2 atm = 202650 Pa

p₀ = mg/a•b = 160/0.4•0.24 =1667 Pa

N = p/p₀ =202650/1667=121.6 ≈122

- general physics -
**notbobpursley**, Tuesday, December 2, 2014 at 12:25pmThe answer from Elena is almost correct. The question asks for the least number of bricks, so you would actually use the smallest side of the brick to stack them.

Po = 160 / (.24*.095) =~ 7018 Pa

N = 202650 / 7018 = 28.9 = 29 Bricks.

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