Problem 23
Which is the greater distance, 50 miles or 100 kilometers?
Problem 24
Which weighs more, a pound of hamburger or a kilogram of hamburger?
Problem 25
The length \(52.2 \mathrm{mm}\) can also be expressed as _____ \(\mathrm{cm}.\)
Problem 26
Who is taller, a man who is \(1.62 \mathrm{m}\) tall or a woman who is 5 ft 6 in. tall?
Problem 27
The fundamental SI unit of length is the meter. However, we often deal with larger or smaller lengths or distances for which multiples or fractions of the fundamental unit are more useful. For each of the following situations, suggest what fraction or multiple of the meter might be the most appropriate measurement. a. the distance between Chicago and Saint Louis b. the size of your bedroom c. the dimensions of this textbook d. the thickness of a hair
Problem 28
Which metric unit of length or distance is most comparable in scale to each of the following English system units for making measurements? a. an inch b. a yard c. a mile
Problem 29
The unit of volume in the metric system is the liter, which consists of 1000 milliliters. How many liters or milliliters is each of the following common English system measurements approximately equivalent to? a. a gallon of gasoline b. a pint of milk c. a cup of water
Problem 30
Which metric system unit is most appropriate for measuring the distance between two cities? a. meters b. millimeters c. centimeters d. kilometers
Problem 37
Indicate the number of significant figures in each of the following: a. 1000 b. 1000 c. 100.01 d. \(1 \times 10^{2}\) e. 0.0000000001
Problem 38
Indicate the number of significant figures implied in each of the following statements: a. The population of the United States is 250 million. b. One hour is equivalent to 60 minutes. c. There are 5280 feet in 1 mile. d. Jet airliners fly at \(500 \mathrm{mi} / \mathrm{h}\). e. The "Daytona \(500 "\) is a 500 -mile race.
