Posted by Thao on Thursday, October 16, 2008 at 8:39pm.
A little aluminum boat (mass of 14.50g) has a volume of 450.00cm3. The boat is placed in a small pool of water and carefully filled with pennies. If each penny has a mass of 2.50g, how many pennies can be added to the boat before it sinks?

Science 8 grade  bobpursley, Thursday, October 16, 2008 at 8:41pm
The boat will displace its mass in water, or 450 grams
n*2.5 + 14.5=450
solve for n.

Science 8 grade  bobpursley, Thursday, October 16, 2008 at 8:54pm
you cant have .2 pennies,so it sinks on the 175th penny.
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