2009F 1140 HWsoln 1,2,3,4

2009F 1140 HWsoln 1,2,3,4 - -1 PH1140-FALL...

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Unformatted text preview: -1- PH1140-FALL 2009READING &HOMEWORKName printed: _________________________________ My Lab Section Number: _________ Taylor – Reading Assignments– The important results in Taylor are summarized in BOXES , such as box 2.5, on page 15. Most reading assignments are made by indicating boxes. Read whatever you need to understand what’s in the box and how to use it. Taylor – NOT to Read– Avoid anything having to do with “provisional” rules, including SECTIONS 2.4, 2.8, 2.9, & 3.3.A – DATA FORMAT– Reading: Data Formathandout, Taylor BOXES 2.5, 2.9, 2.10, & 2.21 1 (12pts) Significant figures- How many significant figures are in these numbers? 1a)3.1415926 __________8_________ 1b) 20,035 __________5__________ 1c) 2.0000965 __________8__________ 1d) 1.000 __________4__________ 1e)0.001933 __________4__________ 1f)0.009 __________1__________ 2 (10pts) Scientific notation and standard form for writing results Rewrite these numbers along with their uncertainties in correct standard scientific notation, including the units. Assume that the error has only one significant figure and omits digits from the number and error that are not significant. 2a)v = 341.6 +32.45 m/s_______________340 +30 m/s_____________________ 2b)L = 0.000,000,752436 m ± 0.000,000,077 cm _________(7.524 +0.008) x 10-7m________ 2c)q = 1.85 x 10-19 C ± 3.2 x 10-20 C__________(1.8 +0.3) x 10-19C__________ 2d)c = 299,792,500 ± 300 m/s __________(2997925 +3) x 102m/s____________ 2e)n = 1.0003 +0.057 ________1.00 +0.06_____________________ -2-...
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2009F 1140 HWsoln 1,2,3,4 - -1 PH1140-FALL...

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