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Unformatted text preview: between the buoyant force and the weight of the water displaced for lead, is 0.186%. This successfully demonstrates that the two values are almost equal, which is how it should be. As shown above, the percent error in the lead’s specific density as calculated is 5.1% and for aluminum, it is 1.5%. Experimental Error: One error in this lab was from the overflow bucket and the double pan balance. When the lead cube and piece of aluminum were lowered into the overflow bucket, water completely equaling the mass of the lead cube or piece of aluminum was supposed to be displaced from the overflow bucket, but the water doesn’t completely go through the pipe at the end of the hold in the displacement bucket. Therefore, the weight of the water displaced would be a little less than it should be. Also, the double pan balance could only be read to the accuracy of plus or minus 1/10 th of a gram so that is an error in measurement....
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This note was uploaded on 08/26/2008 for the course PHYS 125 taught by Professor Paris during the Summer '08 term at Mesa CC.
- Summer '08