Practice: What is the area of a sidewalk that is 2.293 m wide and 90 m long? Write your answer with the correct number

of significant figures.

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Introduction to Units | 24 mins | 0 completed | Learn |

Unit Conversions | 17 mins | 0 completed | Learn |

Solving Density Problems | 14 mins | 0 completed | Learn |

Dimensional Analysis | 11 mins | 0 completed | Learn |

Counting Significant Figures | 6 mins | 0 completed | Learn |

Operations with Significant Figures | 11 mins | 0 completed | Learn |

Additional Practice |
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Uncertainty |

Practice: What is the area of a sidewalk that is 2.293 m wide and 90 m long? Write your answer with the correct number

of significant figures.

0 of 3 completed

Concept #1: Operations with Significant Figures

Practice #1: Area of a Sidewalk (Multiplication with Sig Figs)

Example #1: Volume of Two Blocks

You measure the radius of a wheel to be 4.16 cm.Multiply by 2 to get the diameter and express the result using the correct number of significant figures.

Express the sine of 30.0 with the correct number of significant figures.

The age of the universe is thought to be about 14 billion years.Assuming two significant figures, write this in powers of ten in years.Assuming two significant figures, write this in powers of ten in seconds.

Express the following sum with the correct number of significant figures: 1.60 m + 143.5 cm + 4.52×105 m .

Carry out the arithmetic operations (a) the sum of the measured values 756 37.2 0.83 and 2 (b) the product 0.003 2 3 356.3 and (c) the product 5.620 3 p.

The density of an object is defined as its mass divided by its volume. Suppose the mass and volume of a rock are measured to be 8 g and 2.8325 cm3.What is the correct number of significant figures for the rocks density?Calculate the rocks density.

As an architect, you are designing a new house. A window has a height between
150 cm
and
160 cm
and a width between
82 cm
and
70 cm .What is the largest area that the window could be?When calculating the areas what is the appropriate number of significant figures?What is the smallest area that the window could be?

An intravenous saline drip has
9.0 g
of sodium chloride per liter of water. By definition, 1 mL = 1 cm3.Express the salt
concentration in
kg/m3.When converting the concentration what is the appropriate number of significant figures?

Compute the following numbers, applying the significant figure rule adopted in this textbook.
You may want to review (Pages 23 - 26).33.6 25.6
33.6-25.6sqrt {33.6}333.325.6

A regulation soccer field for international play is a rectangle with a length between 100 m
and 110 m
and a width between 64 m
and 75 m.What is the smallest area that the field could be?What is the largest area that the field could be?When calculating the areas what is the appropriate number of significant figures?

Perform the following calculations with the correct number of significant figures.(a) 159.31 x 204.6(b) 5.1125 + 0.67 + 3.2(c) 7.662 - 7.425(d) 16.5/3.45

For small angles (α < 20°), the numerical value of sin α is approximately the same as the numerical value of tan α{an (heta)}.Find the largest angle for which sine and tangent agree to within two significant figures.

The length and width of a rectangle are 1.125 m and 0.606 m, respectively. Multiplying your calculator gives the product as 0.68175. Rounding properly to the correct number of significant figures, the area should be written asA) 0.6818 m2.B) 0.68 m2.C) 0.68175 m2.D) 0.682 m2.

With a wooden ruler you measure the length of a rectangular piece of sheet metal to be 14 mm. You use micrometer calipers to measure the width of the rectangle and obtain the value 6.01 mm. Answer the following questions to the correct number of significant figures. What is the...(a) Area of the rectangle?(b) Ratio of the rectangles width to its length?(c) Perimeter of the rectangle?(d) Difference between the length and width?(e) Ratio of the length to the width?

Add ( 9.2 × 103 s ) + ( 8.3 × 104 s ) + ( 0.008 × 106 s ).

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