2. (I) How many significant figures do each of the following numbers have: (a) 2

Question

2. (I) How many significant figures do each of the following numbers have: (a) 214, (b) 81.60, (c) 7.03, (d) 0.03, (e) 0.0086, (f) 3236, and (g) 8700? 4. (I) Write out the following numbers in full with the correct number of zeros: (a) 8.69× 104, (b) 9.1 × 103 (c) 8.8 × 10-1, (d) 476 × 102, and (e) 3.62 × 10-5 5. (II) What is the percent uncertainty in the measurement 15. (II) What is the conversion factor between (a) ft and yd2, (Note: Remember that for rough estimates, only round numbers are 24. (I) Estimate the order of magnitude (power of ten) of: (a) 2800 *35. (I) What are the dimensions of density, which is mass per 5.48 ± 0.25 m? (b) m2 and ft? needed both as input to calculations and as final results.) (b) 8630 × 102, (c) 0.0076, and (d) 15.0 × 108 volume?

Explanation / Answer

2] a] Number of Significant figures in 214 is 3 .

b] Number of Significant figures in 81.60 is 3 .

c] Number of Significant figures in 7.03 is 3 .

d] Number of Significant figures in 0.03 is 1.

e] Number of Significant figures in 0.0086 is 2.

f] Number of Significant figures in 3236 is 4.

g] Number of Significant figures in 8700 is 2.

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