Chapter 2: Problem 70
Give all interpretations possible for the measurement \(2200 \mathrm{ft}\).
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Key Concepts
These are the key concepts you need to understand to accurately answer the question.
Chapter 2: Problem 70
Give all interpretations possible for the measurement \(2200 \mathrm{ft}\).
These are the key concepts you need to understand to accurately answer the question.
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Get started for freeThe density of an irregularly shaped object is determined by immersing the object in water. If the mass of the object is \(8.34 \mathrm{~g}\) and the water level rises from \(25.00 \mathrm{~mL}\) to \(28.10 \mathrm{~mL}\), what is the density of the object in grams per milliliter?
A student reports a series of five length measurements that are accurate but not precise. Is it more likely that his laboratory technique is very good but the measuring instrument is bad, or that his laboratory technique is bad? Explain.
On a hot summer day, you want to cool two glasses of warm lemonade, but have no ice. Not wanting to wait until you can make some, you place two small metal blocks in the freezer. One block is pure iron, the other pure aluminum, and each has a mass of exactly \(50 \mathrm{~g}\). After both have cooled to \(-10^{\circ} \mathrm{C}\), you put them into separate glasses and add \(200 \mathrm{~mL}\) of warm lemonade to each. After a few minutes, both blocks have warmed up to \(+10{ }^{\circ} \mathrm{C}\). At this point, is the lemonade in one glass cooler than the lemonade in the other glass? If so, which is cooler and why? (Despite all the numerical information, you should be able to use specific heat values from Table \(2.5\) to answer without doing any calculations.)
In the United States, car fuel efficiency is expressed in miles per gallon of gasoline. However, fuel efficiency can also be expressed in kilometers per liter of gasoline. If the fuel efficiency of a car is \(11.0 \mathrm{~km} / \mathrm{L}\), what is its fuel efficiency in miles per gallon? \([1\) mile \(=1.61 \mathrm{~km}, 1\) gallon \(=3.79 \mathrm{~L}]\)
Convert: (a) \(7.98 \times 10^{23} \mu \mathrm{L}\) to liters (b) \(3.00 \times 10^{-3} \mathrm{mg}\) to grams (c) \(4.21 \times 10^{8} \mathrm{~mL}\) to gallons \(\left[1 \mathrm{~m}^{3}=264\right.\) gallons \(]\)
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