Problem 1SAQ: Q1.Express the number 0.000042 in scientific notation.
a.
b.
c.
d.
Problem 2SAQ: Q2. A graduated cylinder has markings every milliliter. Which measurement is accurately reported for... Problem 3SAQ: How many significant figures are in the number 0.00620? a. 2 b. 3 c. 4 d. 5 Problem 4SAQ: Round the number 89.04997 to three significant figures. a. 89.03 b. 89.04 c. 89.1 d. 89.0 Problem 5SAQ: Q5.Perform this multiplication to the correct number of significant figures:... Problem 6SAQ: Q6.Perform this addition to the correct number of significant figures:
a. 20.488
b. 20.49
c. 20.5
d.... Problem 7SAQ: Q7. Perform this calculation to the correct number of significant figures:
a. 39
b. 39.1
c.... Problem 8SAQ: Convert 76.8 cm to m. a. 0.0768 m b. 7.68 m c. 0.768 m d. 7.68102m. Problem 9SAQ: Q9.Convert 2855 mg to kg.
a.
b. 2.855 kg
c. 0.02855 kg
d.
Problem 10SAQ: Q10. A runner runs 4875 ft in 6.85 minutes. What is the runner’s average speed in miles per... Problem 11SAQ: An automobile travels 97.2 km on 7.88 L of gasoline. What is the gas mileage for the automobile in... Problem 12SAQ: Convert 876.9 in.3 tom3. a. 0.01437m3 b. 22.27 m3 c. 5.351107m3 d. 0.014 m3 Problem 13SAQ: Convert 27 m/s to km/hr. a. 97 km/hr b. 7.5 km/hr c. 1.6 km/hr d. 0.027 km/hr Problem 14SAQ: Q14. A cube measures 2.5cm on each edge and has a mass of 66.9g. Calculate the density of the... Problem 15SAQ: What is the mass of 225 mL of a liquid that has a density of 0.880 g/mL? a. 198 g b. 0.0039 g c.... Problem 16SAQ: Q16. What is the edge length of a 155-g iron cube? (The density of iron is 7.86 g/cm3, and the... Problem 1E: 1. Why is it necessary to include units when reporting scientific measurements?
Problem 2E: Why are the number of digits reported in scientific measurements important? Problem 3E: Why is scientific notation useful? Problem 4E: If a measured quantity is written correctly, which digits are certain? Which are uncertain? Problem 5E: 5. When do zeros count as significant digits, and when don’t they count?
Problem 6E: 6. How many significant digits are there in exact number? What kinds of numbers are exact?
Problem 7E: 7. What limits the number of significant digits in a calculation involving only multiplication and... Problem 8E: What limits the number of significant digits in a calculation involving only addition and... Problem 9E: 9. How do we determine significant figures in calculations involving both addition/subtraction and... Problem 10E: What are the rules for rounding number? Problem 11E: 11. What are the basic SI units of length, mass, and time?
Problem 12E: 12. List the common units of volume.
Problem 13E: Suppose you are trying to measure the diameter of a Frisbee. What unit and prefix multiplier should... Problem 14E: What is the difference between mass and weight? Problem 15E: 15. Using a metric ruler, measure these objects to the correct number of significant figures.
a.... Problem 16E: Using a stopwatch, measure each time to the correct number of significant figures. a. time between... Problem 17E: Explain why units are important in calculations. Problem 18E: How are units treated in a calculation? Problem 19E: 19. What is a conversion factor?
Problem 20E: Why does the fundamental value of a quantity not change when you multiply the quantify by a... Problem 21E: Write the conversion factor that converts a measurement in inches to feet. How does the conversion... Problem 22E: Write conversion factors for each. a. miles to kilometers b. kilometers to liters c. gallons to... Problem 23E: This book outlines a four-step problem-solving strategy. Describe each step and its significance. a.... Problem 24E: Experienced problem solvers always consider both the value and units of their answer to a problem.... Problem 25E: 25. Draw solution map to convert a measurement in grams to pounds.
Problem 26E: Draw a solution map to convert a measurement in milliliters to gallons. Problem 27E: 27. Draw a solution map to convert a measurement in meters to feet.
Problem 28E: Draw a solution map to convert a measurement in ounces to grams. (1 1b = 16 oz) Problem 29E: What density? Explain why density can work as a conversion factor. Between what quantities does it... Problem 30E: Explain how you would calculate the density of a substance. Include a solution map in your... Problem 31E: 31. Express each number in scientific notation.
a. 38,802,000 (population of California)
b.... Problem 32E: Express each number in scientific notation. a. 7,376,000,000 (population of the world) b.... Problem 33E: Note: The exercises in the problems section are paired, and the answers to the odd-numbered... Problem 34E: Express each number in scientific notation. a. 0.000000001 s (time it takes light to travel 1 ft) b.... Problem 35E: 35. Express each number in decimal notation (i.e., express the number without using scientific... Problem 36E: 36. Express each number in decimal notation (i.e., express the number without using scientific... Problem 37E: 37. Express each number in decimal notation (i.e., express the number without using scientific... Problem 38E: 38. Express each number in decimal notation (i.e., express the number without using scientific... Problem 39E: 39. Complete the table.
Decimal Notation Scientific... Problem 40E: Complete the table. Decimal Notation Scientific Notation __________ 42103 315,171,000 ________... Problem 41E: 41. Read each instrument to the correct number of significant figure. Laboratory glassware should... Problem 42E: Read each instrument to the correct number of significant figure. Laboratory glassw are should... Problem 43E: For each measured quantity, underline the zeros that are significant and draw an x through the zeros... Problem 44E: For each measured quantity, underline the zeros that are significant and draw an x through the zeros... Problem 45E: How many significant figures are in each measured quantity? a. 0.001125 m b. 0.1125 m c. 1.12500104m... Problem 46E: Significant Figures
46. How many significant figures are in each measured quality?
a. 13001 kg
b.... Problem 47E: 47 Correct any entries in the table that are wrong.
Quantity Significant Figures
(a)895675... Problem 48E: Correct any entries in the table that are wrong. Quantity Significant Figures (a)24 days 2 (b)... Problem 49E: Round each number to four significant figures. a. 255.98612 b. 0.0004893222 c. 2.900856104 d.... Problem 50E: Round each number to three significant figures. a. 10,776.522 b. 4.999902106 c.1.3499999995... Problem 51E: 51. Round each number to two significant figures.
a.2.34
b.2.35
c.2.349
d.2.359
Problem 52E: 52. Round each number to three significant figures.
a.65.74
b.65.749
c.65.75
d.65.750
Problem 53E: 53. Each number is supposed to be rounded to three significant figures. Correct the ones that are... Problem 54E: Each number is supposed to be rounded to two significant figures. Correct the ones that are... Problem 55E: Round the number on the left to the number of significant figures indicated by the example in the... Problem 56E: 56. Round the number on the left to the number of significant figures indicated by the example in... Problem 57E: Perform each calculation to the correct number of significant figures. a. 450030600391 b. 5.558.97... Problem 58E: Perform each calculation to the correct number of significant figures. a. 89.377.00.08 b.... Problem 59E: 59. Correct any answers that have the incorrect number of significant figures.
a.
b.... Problem 60E: 60. Correct any answers that have the incorrect number of significant figures.
a. 45.3254 ×89.00205... Problem 61E: Perform each calculation to the correct number of significant figures. a.87.6+9.888+2.3+10.77 b.... Problem 62E: Perform each calculation to the correct number of significant figures. a. 1459.3 + 9.77 + 4.32 b.... Problem 63E: Correct any answers that have the incorrect number of significant figures. a. (38105)(845105)=47105... Problem 64E: Correct any answers that have the incorrect number of significant figures. a. 789+8904323=95102... Problem 65E: Perform each calculation to the correct number of significant figures. a. (78.444.889)0.0087 b.... Problem 66E: 66. Perform each calculation to the correct number of significant figures.
a.
b.(568.99... Problem 67E: Correct any answers that have the incorrect number of significant figures. a. (7856944)456=3152 b.... Problem 68E: Correct any answers that have the incorrect number of significant figures. a. (908434)352104=0026 b.... Problem 69E: Perform each conversion. a.3.55 kg to grams b.8944 mm to meters c.4598 mg to kilograms d.0.0187 L to... Problem 70E: Perform each conversion. a.155.5 cm to meters b.2491.6 g to kilograms c.248 cm to milliliters d.... Problem 71E: Perform each conversion. a.5.88 dL to liters b. 341105 g to micrograms c. 101108 s to nanoseconds d.... Problem 72E: 72. Perform each conversion.
a.1.08 Mm to kilometers
b.4.88 fs to picoseconds
c. m to gigameters
d.... Problem 73E: Perform each conversion. a. 22.5 in. to centimeters b.126 ft to meters c.825 yd to kilometers d. 2.4... Problem 74E: Perform each conversion. a. 78.3 in. to centimeters b.445 yd to meters c. 336 ft to centimeters d.... Problem 75E: Perform each conversion. a.40.0 cm to inches b. 27.8 m to feet c. 10.0 km to miles d. 3845 kg to... Problem 76E: 76. Perform each conversion.
a.254 cm to inches
b. 89 mm to inches
c. 7.5 L to quarts
d. 122 kg to... Problem 77E: 77. Complete the table.
m km Mm Gm Tm
_________ 508 Mm _______ ________
_________ _________ 27,976... Problem 78E: 78. Complete the table.
s ms μs ns ps
_________ 131... Problem 79E: 79. Convert g to each unit.
a.kg
b.Mg
c.mg
d. metric tons (1 metric ton = 1000kg)
Problem 80E: Convert 188106 g to each unit. a. mg b. cg c. ng d. g Problem 81E: A student loses 3.3 lb in one month. How many grams did he lose? Problem 82E: 82. A student gains 1.9 lb in two weeks. How many grams did he gain?
Problem 83E: A runner wants to run 10.0 km. She knows that her running pace is 7.5 mi/h. How many minutes must... Problem 84E: A cyclist rides at an average speed of 24 mi/h. If he wants to bike 195 km, how long (in hours) must... Problem 85E: 85. A recipe calls for 5.0 qt of milk. What is this quantity in cubic centimeters?
Problem 86E: A gas can hold 2.0 gal of gasoline. What is this quantity in cubic centimeters? Problem 87E: 87. Fill in the blanks.
a.
b.
c.
Problem 88E Problem 89E: The hydrogen atom has a volume of approximately 6.21031m3. What is this volume in each unit? a.... Problem 90E: 90. Earth has a surface area of 197 million square miles. What is its area in each unit?
a. square... Problem 91E: 91. A house has an area of What is its area in each unit?
a.
b.
c.
Problem 92E: A classroom has a volume of 285m3. What is its volume in each unit? a. km3 b. dm3 c. cm3 Problem 93E: Total U.S farmland occupies 954 million acres. How many square miles is this?... Problem 94E: 94. Total average U.S farm occupies 435 acres. How many square miles is this?
Problem 95E: 95. The speed limit on many U.S highways is 65 mi/hr. Convert this speed into each alternative... Problem 96E: 96. A form of children’s Tylenol is sold as a suspension (in which the drug is suspended in water)... Problem 97E: A prescription medication requires 7.55 mg per kg of body weight. Convert this quantity to the... Problem 98E: A prescription medication requires 0.00225 g per lb of bady weight. Convert this quantity to the... Problem 99E: A sample of an unknown metal has a mass of 35.4 and a volume of 3.11cm3. Calculate its density and... Problem 100E: A new penny has a mass 2.49 g and a valume of 0.349cm3. Is the penny pure copper? Problem 101E: Glycerol is a syrupy liquid often used in cosmetics and soaps. A 2.50-l sample of pure glycerol has... Problem 102E: 102. An aluminum engine block has a valume of 4.77 L and a mass of 12.88 kg. what is the density of... Problem 103E: A supposedly gold crown is tested to determine its density. It displaces 10.7 mL of water and has a... Problem 104E: 104. A vase is said to be solid platinum. It displaces 18.65 mL of water and has a mass of 157 g.... Problem 105E: Ethylene glycol (antifreeze) has a density of 1.11g/cm3 a. What is the mass in grams of 387 mL of... Problem 106E: Acetone (fingernailpolish remover) has density of 0.7857g/cm3 a. What is the mass in grams of 17.56... Problem 107E: A thief uses a bag of sand to replace a gold statue that sits on a weight-sensitive, alarmed... Problem 108E: One of the particles in an atom is the proton. A proton has a radius of approximately 1.01013 cm and... Problem 109E: A block of metal has a volume 13.4in.3 and weight 5.14 Ib. what is density in grams per cubic... Problem 110E: 110. A log is either oak or pine. it displaces 2.7 gal of water and weight 19.8 Ib. is the oak or... Problem 111E: 111. The density of aluminum is . What is its density in kilograms per cubic meter?
Problem 112E: 112. The density of platinum is . What is its density in pounds per cubic inch?
Problem 113E: A typical backyard swimming pool holds 150 yd3 of water. What is the mass in pounds of the water? Problem 114E: 114. An iceberg has a volume of . What is the mass in kilograms of the iceberg? The density of ice... Problem 115E: The mass of fuel in an airplane must be determined before takeoff. A jet contains 155,211 L of fuel... Problem 116E Problem 117E: Honda produces a hybrid electric car called the Honda insight. The insight has both a... Problem 118E: You rent a car in Germany with a gas mileage rating of 12.8 km/l. What is its rating in miles per... Problem 119E Problem 120E: 120. A hybrid SUV consumes fuel at a rate of 12.8 km/L. How many miles can the car travel on 22.5... Problem 121E Problem 122E: Consider these observations on two blocks of different unknown metals: volume Block A 125 cm3 Block... Problem 123E: 123. You measure the masses and volumes of two cylinders. The mass of cylinder 1 is 1.35 times the... Problem 124E: A bag contains a mixture of copper and lead BBs. The average density of the BBs is 9.87g/cm3.... Problem 125E Problem 126E: A copper cube has a mass of 87.2 g. Find the edge length of the cube. (The density of copper is... Problem 127E: 127. Recall from Section 2.1 that NASA lost the Mars Climate Orbiter because one group of engineers... Problem 128E: 28. A NASA satellite showed that in 2012 the ozone hole over Antarctica had a maximum surface area... Problem 129E: 129. In 1999, scientists discovered a new class of black hole with masses 100 to 10,000 times the... Problem 130E: 130. A titanium bicycle frame contains the same amount of titanium as a titanium cube measuring 6.8... Problem 131QGW: Look up the thickness of a human hair. a. Convert it to an Sl standard unit (if it isnt already). b.... Problem 132QGW: 132. The following statements are all true.
a. Jessica’s house is 5 km from the grocery store.
b.... Problem 133QGW: Convert the height of each group member from feet and inches into meters. Once you determine your... format_list_bulleted