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Problem

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Rikhil M.
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Problem 1 Problem 2 Problem 3 Problem 4 Problem 5 Problem 6 Problem 7 Problem 8 Problem 9 Problem 10 Problem 11 Problem 12 Problem 13 Problem 14 Problem 15 Problem 16 Problem 17 Problem 18 Problem 19 Problem 20 Problem 21 Problem 22 Problem 23 Problem 24 Problem 25 Problem 26 Problem 27 Problem 28 Problem 29 Problem 30 Problem 31 Problem 32 Problem 33 Problem 34 Problem 35 Problem 36 Problem 37 Problem 38 Problem 39 Problem 40 Problem 41 Problem 42 Problem 43 Problem 44 Problem 45 Problem 46 Problem 47 Problem 48 Problem 49 Problem 50 Problem 51 Problem 52 Problem 53 Problem 54 Problem 55 Problem 56 Problem 57 Problem 58 Problem 59 Problem 60 Problem 61 Problem 62 Problem 63 Problem 64 Problem 65 Problem 66 Problem 67 Problem 68 Problem 69 Problem 70 Problem 71 Problem 72 Problem 73 Problem 74 Problem 75 Problem 76 Problem 77 Problem 78 Problem 79 Problem 80 Problem 81 Problem 82 Problem 83 Problem 84 Problem 85 Problem 86 Problem 87 Problem 88 Problem 89 Problem 90 Problem 91 Problem 92 Problem 93 Problem 94 Problem 95 Problem 96 Problem 97 Problem 98 Problem 99

Problem 49 Medium Difficulty

How many significant figures are contained in each of the following measurements?
(a) 53 $\mathrm{cm}$
(b) $2.05 \times 10^{8} \mathrm{m}$
(c) $86,002 \mathrm{J}$
(d) $9.740 \times 10^{4} \mathrm{m} / \mathrm{s}$
(e) 10.0613 $\mathrm{m}^{3}$
(f) 0.17 $\mathrm{g} / \mathrm{mL}$
(g) 0.88400 $\mathrm{s}$

Answer

a) The decimal point position is understood that it is placed after the two non-zero digits.
b) The zero between two non-zero figures.
c) The decimal point position is understood that it is placed after the two non-zero digits.
d) Zero to the right of the decimal point after non-zero number is significant
e) Zeros between the non-zero numbers are called captive zeros and are significant.
f) The leading zero to the left of the decimal point has no value and is insignificant. The non-zero numbers to the right of the decimal should be counted.
g) Trailing zeros after the non-zero digits are considered significant while leading zero to the left of the decimal is not significant.

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Video Transcript

how everyone says Ricky. And today, working on problem 49 on, we're gonna be determining the number of significant vigorous that air contained in each of the following measurements. All right, so 53 centimeters, I'd be too sick. Thinks right. Six big, um, 2.5 times sent to the eighth. Be 36 things. Who's that? Um, a 6000 and two jewels. That is one do 3456 figs, 9.740 time. Sense of the fourth meters per second, but forcing things 10.613 That is 66 figs. Wait 17 grams room with milliliters to six weeks. Last but not least 0.88400 seconds has 566 And, um, these trailing zeros can have some pretty

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