What is the percent error if the know value

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1) An experiment requires you to make several measurements: 0.2139, 0.2130, 0.2133, 0.2135. What is the percent error if the know value is 0.2135. ( please show work)

2) Answer with the correct number of significant figures

15(35.7-31)/5.0

3) What is the volume (in L) of an object that has the density of 8.96g/cm^3 and a mass of 15 kg? 1L=1000cm^3 (please show work)

4) What is the volume (km^3) of air in a room that measures 14ft x 16ft x 9.0ft. For your answer use ^ to show "raised to", for example cm^3.

1 ft= 0.305m

*please shoe work*

5) Water flows from a typical garden hose at 620 gal/hr. How many seconds does it take to fill a 55 gal drum with the garden hose?

*please show work*

6) What is an isotope? Make sure discuss the subatomic particles, atomic number and mass number in your answer.

Reference no: EM132560701

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