Practice: If the distance between Washington, D.C. and New York City is 224.9 miles, determine the distance in centimeters.

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The Scientific Method |

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Standard Deviation, Mean, Median & Mode |

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Types of Energy |

We use **dimensional analysis **as a fail proof process to convert from one unit to another.

Using Dimensional Analysis, start with the given amount and obtain the end amount by using conversion factors.

Example #1: A TA can grade 4 assignments per hour. If each assignment has 12 questions, how many questions can the TA grade in 130 minutes?

Practice: If the distance between Washington, D.C. and New York City is 224.9 miles, determine the distance in centimeters.

Practice: The average human body is composed of approximately 160 fluid ounces of blood. How many quarts of blood does the average human body possess? (1 gallon = 4 quarts, 1 pint = 2 cups, 1 cup = 8 fluid ounces, 1 quart = 2 pints).

Practice: Lipitor, a pharmaceutical drug that has been shown to lower “bad” cholesterol levels, while boosting “good” cholesterol levels had over $12 billion in sales last year. Each pill weighs 2.5 g, which contains 4.0% of the active ingredient by mass. What mass in kg of the active ingredient is present in one bottle of 120 pills?

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A pascal is a newton per square meter and a newton is a kilogram-meter per second squared, while a joule is a newton-meter. What is a pascal-meter cubed?
A. newton
B. atmosphere
C. joule
D. Watt
E. volt

The diameter of the nucleus of an atom is approximately 1 × 10 -15 m. If 1 nm is equal to 10 Ångstroms, what is the diameter of the nucleus in Ångstroms?
A) 1 × 10 -5 Å
B) 1 × 10 -7 Å
C) 1 × 10 -23 Å
D) 1 × 10 -8 Å

The man in the wilderness said to me, How many buckets could empty the sea? Who-who’s that crying in the cold night air? Who-who? Who-who? Who-who goes there? How many buckets could empty the sea? Three times ten to the power of twenty Is the number of gallons in all the oceans. According to the best of the mathematicians. Now if each bucket is of good parameters, say five hundred cubic centimeters, how many moles of these do we need to completely empty the sea. And where will we put all that water? Never mind that, my little daughter. Just tell me how many moles please of buckets to buy, to empty the seas. (1 gal=3.78 L) a) 4 x 10-3b) 1 x 1045c) 2 x 1015d) 2 x 1021e) none of the given answers is even within an order of magnitude

In ancient times, the closest thing to a formal unit area was the yoke (Hebrew semed) which referred to the amount of land that a pair of yoked oxen could plough in a single day. The standard estimate of this was usually taken as equal to 6480 square cubits. How many acres is this? (1 cubit = 18 units, 12 inches = 1 foot, 1 acre = 43,560 square feet)a) 7.9b) 0.25c) 0.33d) 10e) none of the given answers is close.

The diameter of a hydrogen atom is 212 pm. Find the length in km of a row of 6.02 x 1023 hydrogen atoms. 1 pm = 10 -12 m.A. 2.41 x 1019 kmB. 1.28 x 1011 kmC. 3.60 x 1012 kmD. 5.59 x 1023 km

The length of an O ---- H bond in water is approximately1. 1.0 x 10 -4 cm.2. 1.0 x 10 -8 cm.3. 1.0 x 10 -12 cm.4. 1.0 m.

If an object has a density of 8.65 g/cm3, what is its density in units of kg/m3?A) 8.65 × 10-3 kg/m3B) 8.65 × 10-7 kg/m3C) 8.65 × 103 kg/m3D) 8.65 × 101 kg/m3E) 8.65 × 10-1 kg/m3

The recommended adult dose of a drug used to treat asthma is 10.0 mg/kg of body mass. Calculate the dose in mg for a 200-lb person . (1 kg = 2.205 lb)A. 0.110 mgB. 907 mgC. 4.41 mgD. 2.00 x 103 mg

Convert:a. 154 cm to in

Convert:c. 3.5 L to qt

Convert:d. 109 mm to in

Convert:a. 1.4 in to mm

Convert:b. 116 ft to cm

Convert:c. 1845 kg to lb

Convert:d. 815 yd to km

A runner wants to run 100.0 km. She knows that her running pace is 7.5 miles per hour. How many minutes must she run?

A European automobile has a gas mileage of 17 km/L. What is the gas mileage in miles per gallon?

A cyclist rides at an average speed of 18 miles per hour. If she wants to bike 212 km, how long (in hours) must she ride?

A gas can holds 5.0 gallons of gasoline. What is this quantity in cm 3?

The average U.S. farm occupies 435 acres. How many square miles is this? (1 acre = 43,560 ft2, 1 mile = 5280 ft)

Total U.S. farmland occupies 954 million acres. How many square miles is this? (1 acre= 43,560ft2, 1 mile= 5280ft). Total U.S. land area is 3.537 million square miles. What percentage of U.S. land is farmland?

There are exactly 60 seconds in a minute. there are exactly 60 minutes in an hour, there are exactly 24 hours in a mean solar day, and there are 365.24 solar days in a solar year. Find the number of seconds in a solar year. Be sure to give your answer with the correct number of significant figures.

The value of the Euro is currently $1.35 U.S. and the price of 1 liter of gasoline in France is 0.97 Euro. What is the price of 1 gallon of gasoline in U.S. dollars in France?

The density of iron is 7.86 g/cm3. What is its density in pounds per cubic inch (lb/in3)?

The Honda Insight, a hybrid electric vehicle, has an EPA gas mileage rating of 57 mi/gal in the city. How many kilometers can the Insight travel on the amount of gasoline that would fit in a soda pop can? The volume of a soda pop can is 355 mL.

The diameter of a hydrogen atom is 212 pm. Find the length in kilometers of a row of 6.02 X 1023 hydrogen atoms. The diameter of a ping pong ball is 4.0 cm. Find the length in kilometers of a row of 6.02 X 1023 ping pong balls.

Table salt contains 39.33 g of sodium per 100 g of sail. The U.S. Food and Drug Administration (FDA) recommends that adults consume less than 2.40 g of sodium per day. A particular snack mix contains 1.25 g of salt per 100 g of the mix. What mass of the snack mix can you consume and still be within the FDA limit? (Assume three significant figures for 100 g.)

A penny has a thickness of approximately 1.0 mm. If you stacked Avogadro's number of pennies one on top of the other on Earth's surface, how far would the stack extend (in km)? [For comparison, the sun is about 150 million km from Earth and the nearest star (Proxima Centauri) is about 40 trillion km from Earth.]

Consider the stack of pennies in the previous problem. How much money (in dollars) would this represent? If this money were equally distributed among the world's population of 6.5 billion people, how much would each person receive? Would each person be a millionaire? Billionaire? Trillionaire?

In Section 2.9, it was stated that 1 mol of sand grains would cover the state of Texas to several feet. Estimate how many feet by assuming that the sand grains are roughly cube-shaped, each one with an edge length of 0.10 mm. Texas has a land area of 268,601 square miles.

The average person breathes 14 times per minute. Each breath is about 350 mL. The exhaled air is about 5.3% carbon dioxide. In all about 5,300 moles (44 g in a mole) of carbon dioxide are exhaled per person per year. If the human population of the earth is 7.2 x 109, how many kilograms of carbon dioxide are released into the atmosphere by all people in a year?

Using your knowledge of metric units, English units, and the information on the back inside cover, write down the conversion factors needed to convert (c) km to ft

Using your knowledge of metric units, English units, and the information on the back inside cover, write down the conversion factors needed to convert (c) mi to km

Perform the following conversions: (a) 0.076 L to mL, (b) 5.0 x 10 -8 m to nm, (c) 6.88 x 105 ns to s, (d) 0.50 lb to g, (e) 1.55 kg/m 3 to g/L, (f) 5.850 gal/hr to L/s.

(a) A bumblebee flies with a ground speed of 15.2 m/s. Calculate its speed in km/hr.

(b) The lung capacity of the blue whale is 5.0 x 10 3 L. Convert this volume into gallons.

(c) The Statue of Liberty is 151 ft tall. Calculate its height in meters.

(d) Bamboo can grow up to 60.0 cm/day. Convert this growth rate into inches per hour.

(a) The speed of light in a vacuum is 2.998 x 10 8 m/s. Calculate its speed in miles per hour.

(b) The Sears Tower in Chicago is 1454 ft tall. Calculate its height in meters.

(c) The Vehicle Assembly Building at the Kennedy Space Center in Florida has a volume of 3,666,500 m3. Convert this volume to liters and express the result in standard exponential notation.

(d) An individual suffering from a high cholesterol level in her blood has 242 mg of cholesterol per 100 mL of blood. If the total blood volume of the individual is 5.2 L, how many grams of total blood cholesterol does the individual’s body contain?

Perform the following conversion: (a) 5.00 days to s

Perform the following conversion: (b) 0.0550 mi to m,

Perform the following conversion: (c) $1.89/gal to dollars per liter

Perform the following conversion: (d) 0.510 in./ms to km/hr

Perform the following conversion: (e) 22.50 gal/min to L/s

Carry out the following conversion: (a) 0.105 in. to mm

Carry out the following conversion: (b) 0.650 qt to mL

Carry out the following conversion: (c) 8.75 μm/s to km/hr

Carry out the following conversion: (d) 1.955 m3 to yd3

Carry out the following conversion: (e) $3.99/lb to dollars per kg

Carry out the following conversion: (f) 8.75 lb/ft3 to g/mL

(a) How many liters of wine can be held in a wine barrel whose capacity is 31 gal?

(b) The recommended adult dose of Elixophyllin®, a drug used to treat asthma, is 6 mg/kg of body mass. Calculate the dose in milligrams for a 150-lb person.

(b) The recommended adult dose of Elixophyllin®, a drug used to treat asthma, is 6 mg/kg of body mass. Calculate the dose in milligrams for a 185-lb person.

(c) If an automobile is able to travel 254 mi on 11.2 gal of gasoline, what is the gas mileage in km/L?

(c) If an automobile is able to travel 400 km on 47.3 L of gasoline, what is the gas mileage in miles per gallon?

(d) A pound of coffee beans yields 50 cups of coffee (4 cups = 1 qt). How many milliliters of coffee can be obtained from 1 g of coffee beans?

(d) When the coffee is brewed according to directions, a pound of coffee beans yields 50 cups of coffee (4 cups = 1 qt). How many kg of coffee are required to produce 200 cups of coffee?

(a) If an electric car is capable of going 225 km on a single charge, how many charges will it need to travel from Boston, Massachusetts, to Miami, Florida, a distance of 1486 mi, assuming that the trip begins with a full charge?

(a) If an electric car is capable of going 225 km on a single charge, how many charges will it need to travel from Seattle, Washington, to San Diego, California, a distance of 1257 mi, assuming that the trip begins with a full charge?

(b) If a migrating loon flies at an average speed of 14 m/s, what is its average speed in mi/hr?

(c) What is the engine piston displacement in liters of an engine whose displacement is listed as 450 in.3?

(d) In March 1989 the Exxon Valdez ran aground and spilled 240,000 barrels of crude petroleum off the coast of Alaska. One barrel of petroleum is equal to 42 gal. How many liters of petroleum were spilled?

The concentration of carbon monoxide in an urban apartment is 48 μg/m 3. What mass of carbon monoxide in grams is present in a room measuring 9.0 x 14.5 x 18.8 ft?

The concentration of carbon monoxide in an urban apartment is 48 μg/m 3. What mass of carbon monoxide in grams is present in a room measuring 11.0 ft x 11.5 ft x 20.5 ft?

The concentration of carbon monoxide in an urban apartment is 48 µg/m 3. What mass of carbon monoxide in grams is present in a room measuring 10.6 ft x 14.8 ft x 20.5 ft?

The distance from Earth to the Moon is approximately 240,000 mi. (b) The peregrine falcon has been measured as traveling up to 350 km/hr in a dive. If this falcon could fly to the Moon at this speed, how many seconds would it take?

b. Now use the following data to calculate the number of minutes in a month: 24 hours per day, 60 minutes per hour, 7 days per week, and 4 weeks per month.

You are driving 65 mi/h and take your eyes off the road for “just a second.” What distance (in feet) do you travel in this time?

Perform the following unit conversions.a. 908 oz to kilograms

Perform the following unit conversions.c. 125 mL to quarts

Perform the following unit conversions.d. 2.89 gal to milliliters

Perform the following unit conversions.e. 4.48 lb to grams

Perform the following unit conversions.f. 550 mL to quarts

Use the following exact conversion factors to perform the stated calculations:5 1/2 yards = 1 rod40 rods = 1 furlong8 furlongs = 1 milea. The Kentucky Derby race is 1.25 miles. How long is the race in rods, furlongs, meters, and kilometers?

Use the following exact conversion factors to perform the stated calculations:5 1/2 yards = 1 rod40 rods = 1 furlong8 furlongs = 1 mileb. A marathon race is 26 miles, 385 yards. What is this distance in rods, furlongs, meters, and kilometers?

Although the preferred SI unit of area is the square meter, land is often measured in the metric system in hectares (ha). One hectare is equal to 10,000 m2. In the English system, land is often measured in acres (1 acre = 160 rod2). Use the exact conversions and those given in Exercise 39 to calculate the following.a. 1 ha = ________ km2.

Although the preferred SI unit of area is the square meter, land is often measured in the metric system in hectares (ha). One hectare is equal to 10,000 m2. In the English system, land is often measured in acres (1 acre = 160 rod2). Use the exact conversions and those given in Exercise 39 to calculate the following.b. The area of a 5.5-acre plot of land in hectares, square meters, and square kilometers.

Although the preferred SI unit of area is the square meter, land is often measured in the metric system in hectares (ha). One hectare is equal to 10,000 m2. In the English system, land is often measured in acres (1 acre = 160 rod2). Use the exact conversions and those given in Exercise 39 to calculate the following.c. A lot with dimensions 120 ft by 75 ft is to be sold for $6500. What is the price per acre? What is the price per hectare?

Although the preferred SI unit of area is the square meter, land is often measured in the metric system in hectares (ha). One hectare is equal to 10,000 m2. In the English system, land is often measured in acres (1 acre = 160 rod2). Use the exact conversions and those given in Exercise 43 to calculate the following.a. 1 ha = ________ km 2.

Although the preferred SI unit of area is the square meter, land is often measured in the metric system in hectares (ha). One hectare is equal to 10,000 m2. In the English system, land is often measured in acres (1 acre = 160 rod2). Use the exact conversions and those given in Exercise 43 to calculate the following.b. The area of a 5.5-acre plot of land in hectares, square meters, and square kilometers.

Although the preferred SI unit of area is the square meter, land is often measured in the metric system in hectares (ha). One hectare is equal to 10,000 m2. In the English system, land is often measured in acres (1 acre = 160 rod2). Use the exact conversions and those given in Exercise 43 to calculate the following.c. A lot with dimensions 120 ft by 75 ft is to be sold for $6500. What is the price per acre? What is the price per hectare?

Precious metals and gems are measured in troy weights in the English system:24 grains = 1 pennyweight (exact)20 pennyweight = 1 troy ounce (exact)12 troy ounces = 1 troy pound (exact)1 grain = 0.0648 gram1 carat = 0.200 gram a. The most common English unit of mass is the pound avoirdupois. What is one troy pound in kilograms and in pounds?

Precious metals and gems are measured in troy weights in the English system:24 grains = 1 pennyweight (exact)20 pennyweight = 1 troy ounce (exact)12 troy ounces = 1 troy pound (exact)1 grain = 0.0648 gram1 carat = 0.200 gram b. What is the mass of a troy ounce of gold in grams and in carats?

For a pharmacist dispensing pills or capsules, it is often easier to weigh the medication to be dispensed rather than to count the individual pills. If a single antibiotic capsule weighs 0.65 g, and a pharmacist weighs out 15.6 g of capsules, how many capsules have been dispensed?

A children’s pain relief elixir contains 80. mg acetaminophen per 0.50 teaspoon. The dosage recommended for a child who weighs between 24 and 35 lb is 1.5 teaspoons. What is the range of acetaminophen dosages, expressed in mg acetaminophen/kg body weight, for children who weigh between 24 and 35 lb?

Science fiction often uses nautical analogies to describe space travel. If the starship U.S.S. Enterprise is traveling at warp factor 1.71, what is its speed in knots and in miles per hour? (Warp 1.71= 5.00 times the speed of light; speed of light = 3.00 x 108 m/s; 1 knot = 2000 yd/h, exactly.)

Would a car traveling at a constant speed of 65 km/h violate a 40. mi/h speed limit?

You pass a road sign saying “New York 112 km.” If you drive at a constant speed of 65 mi/h, how long should it take you to reach New York? If your car gets 28 miles to the gallon, how many liters of gasoline are necessary to travel 112 km?

If you put 8.21 gallons of gas in your car and it cost you a total of $17.25, what is the cost of gas per liter in Canadian dollars? Assume 0.82 dollar U.S. = 1.00 dollar Canadian.

You are in Paris, and you want to buy some peaches for lunch. The sign in the fruit stand indicates that peaches cost 2.45 euros per kilogram. Given that 1 euro is equivalent to approximately $1.46, calculate what a pound of peaches will cost in dollars.

You are in Paris, and you want to buy some peaches for lunch. The sign in the fruit stand indicates that peaches cost 2.45 euros per kilogram. Given that 1 euro is equivalent to approximately $1.32, calculate what a pound of peaches will cost in dollars.

The volume of a diamond is found to be 2.8 mL. What is the mass of the diamond in carats?

Ethanol and benzene dissolve in each other. When 100. mL of ethanol is dissolved in 1.00 L of benzene, what is the mass of the mixture? (See Table 1.5.)

a. Calculate the mass of ethanol in 1.50 qt of ethanol. (See Table 1.5.)

b. Calculate the mass of mercury in 3.5 in3 of mercury. (See Table 1.5.)

If you had a mol of U.S. dollar bills and equally distributed the money to all of the people of the world, how rich would every person be? Assume a world population of 6 billion.

If you had a mole of U.S. dollar bills and equally distributed the money to all of the people of the world, how rich would every person be? Assume a world population of 7 billion.

The human nose is so sensitive to vanillin (used to flavor vanilla ice cream) that it can detect it at a concentration of 200 picograms/L of air. The current market price for 50.0 grams of vanillin is $148. Determine the cost to supply enough vanillin so that the aroma could be detected in a large aircraft hanger with a volume of 6.40 x 109 ft3.a. $ 107b. $ 124c. $ 1.07 x 108d. $ 0.115e. $ 35.9

A student in their chemistry lab is asked to measure out the area of the classroom and report the answer in m2. Using a measuring tape, the student found that the room is 18.8 by 15.5 ft in area, What should the student report for the area in m2? ( 1 in. = 2.54 cm )a. 27.1 m2b. 291 m2c. 88.8 m2d. 5.20 m2e. 17.1 m2

A planet is travelling around the sun at 68.2 miles/hour. What will be the speed of the planet in m/s?a. 30.5 m/sb. 3.05 x 10-5 m/sc. 11.8 m/sd. 3.95 x 108 m/se. 1.52 x 108 m/s

The painting American Gothic, by Grant Wood, is a rectanglar shaped canvas with a length of 29 inches and width of 24 inches. What is the area of the painting in cm? Recal 1 inch = 2.54 cmA. 1.3 X 102 cm2B. 4.5 X 103 cm2C. 2.7 X 102 cm2D. 1.1 X 102 cm2E. 1.8 X 103 cm2

If an object has a density of 8.65 g/cm3, what is its density in units of kg/m3?a. 8.65 x 10-3 kg/m3b. 8.65 x 10-7 kg/m3c. 8.65 x 103 kg/m3d. 8.65 x 101 kg/m3e. 8.65 x 10-1 kg/m3

How many minutes are in 2.5 hours?

An ibuprofen (C13H18O2) suspension for infants contains 100 mg/5.0 mL suspension. The recommended dose is 10 mg/kg body weight. How many mL of this suspension should be given to an infant weighing 18 lb??

If the walls in a room are 955 square feet in area, and a gallon of paint covers 15 square yards, how many gallons of paint are needed for the room? (3 ft = 1 yd)A) 7.0 gallonsB) 2.3 gallonsC) 21 gallonsD) 47 gallonsE) 24 gallons

The mountain is 19, 341 feet tall. Convert this height to the SI unit for length. To get you started, 1km = 3280.84 ft.A) 5.8951 kmB) 6.3455 x 107 kmC) 5895.1 mD) 6.3455 x 108 m

Your infant child weighs 13lbs and has a fever. You want to give the baby a dose of Tylenol that contains 160mg acetaminophen/5 mL, but administering too much could cause damage to the child's liver. Your doctor says you can give your child 14 mg acetaminophen/kg. What volume (mL) of Tylenol should you give your baby? Note: 1kg =2.2 lbsA. 2.6 mLB. 13 mLC. 0.013 mLD. 1.0 mL

There are currently 7.37 billion people in the world. If we distributed 1 mole of pennies to everyone evenly, how many dollars would each person get?a). 8.17 Trillion Dollarsb). 817 Billion Dollarsc). 81.7 Thousand Dollarsd). 817 Million Dollarse). 81.7 Trillion Dollars

How many milliseconds are there in 2.50 minutes?a. 150 msb. 9.0 x 103 msc. 1.5 x 105 msd. 2.5 x 103 mse. 41.7 ms

An olympic runner training for the marathon ran 9.308 miles in one hour. What was his speed in meters per second? (1 mile = 1.609 km)a. 15.0 m/sb. 4.16 m/sc. 1.61 m/sd. 2.59 m/se. 53.9 m/s

On the planet Tatooine, the unit of length is the zither which is defined by the relationship 7.50 cm = 1 zither. A distance of 100 meters would be _________ zithers.a. 133b. 266c. 750d. 1.33 X 103e. 7.5 X 104

A car averages 35 miles per gallon. How many liters of gasoline will be needed for a trip of 450 kilometers? Some Conversion factors which may be helpful are: 1 qt = 946 mL; 4qts = 1 gallon; 1 mile = 1.609 km;a. 8 Lb. 25 Lc. 30 Ld. 34 Le. 40 L

In the television series, The Office, Dwight K. Schrute, acting as Regional Manager of Dunder Mifflin Paper Company, awards Stanley Hudson 1 Schrute buck for answering a question correctly. 3.35 Schrute bucks is equivalent to 80.103 unicorns and 84.2 leprechauns is equivalent to 4.10 unicorns. How many Schrute bucks would Stanley have if he was awarded 1.98 leprechauns?

The speed of light is 3.0 x 108 m/s. How many milliseconds does it take for a light signal from earth to reach and return from a satellite that is in orbit 30 miles above the earth?A) 320 msec B) 16 msec C) 32 msec D) 0.32 msec E) 0.16 msec

Which of the following represents the LARGEST mass?a) 1.20 x 107 mgb) 120 kgc) 12.0 tond) 1200 lbe) 1.20 metric ton

How many inches per minute (in./min) are in 4.65 x 107 Ångstrom per millisecond (Å/ms)?A. 1.10 x 106 in./minB. 1.10 x 104 in./minC. 11.0 in./minD. 1.10 x 10-2 in./minE. None of these choices are correct.

Convert $2.99/kg to dollars per Ib.

Assume the ideal gas constant, R, has a value of .08206 (L * atm)/(mol * K). Convert this value into expressions for R in terms of J/(mol* K), (cubic meters * Pa)/(mol * K), (L * bar)/(mol * K), and J/(molecule * K).

Imagine that you took a road trip. Based on the information in the table, what was the average speed of your car?Express your answer to three significant figures and include the appropriate units. Use mi as an abbreviation for miles, and h for hours, or mph can be used to indicate miles per hour.

What amount of energy is required to change a spherical drop of water with a diameter of 2.20 mm to three smaller spherical drops of equal size? The surface tension, γ, of water at room temperature is 72.0 mJ/m2.

Perform each unit conversion.27.8 L to cm3

Gold can be hammered into extremely thin sheets called gold leaf. An architect wants to cover a 100 ft by 86 ft ceiling with gold leaf that is five-millionths of an inch thick. The density of gold is 19.32 g/cm3, and gold costs $ 953 per troy ounce (1 troy ounce = 31.1034768 g{
m g}). How much will it cost the architect to buy the necessary gold?

Many chemistry conferences have held a 50-Trillion Angstrom Run (two significant figures). How long is this run in kilometers and in miles? (1 Å = 1 × 10−10 m)

An acetaminophen suspension for infants contains 80 mg/0.80 mL suspension. The recommended dose is 15 mg/ kg body weight. How many mL of this suspension should be given to an infant weighing 14 lb? (Assume two significant figures.)

The density of a substance if 3.400 g/mL. In SI units, the density is:A. 3400 kg/m 3B. 0.3400 kg/m 3C. 3.4 kg/cm 3D. 3.4 kg/m 3E. 3.4 kg/L3

If an object has a density of 8.65 g/cm3 what is its density in units of kg/m3?

The distance from Earth to the Moon is approximately 240,000 mi.Earth travels around the Sun at an average speed of 29.783 km/s. Convert this speed to miles per hour.

A very good 197-lb weight lifter lifted 192 kg in a move called the clean and jerk. What was the mass of the weight lifted in pounds?

Perform the following conversion: (f) 0.02500 ft3 to cm3.

The total power used by humans worldwide is approximately 15 TW (terawatts). Sunlight striking Earth provides 1.336 kW per square meter (assuming no clouds). The surface area of Earth is approximately 197,000,000 square miles.What percentage of the Earths surface would we need to cover with solar energy collectors to power the planet for use by all humans? Assume that the solar energy collectors can only convert 10 % of the available sunlight into useful power.

Perform the following unit conversions.b. 12.8 L to gallons

How many liters of air are in a room that measures 10.0 ft x 11.0 ft and has an 8.00 ft ceiling?

Calculate the volume of liquid in the test tube sketched below. Give your answer in milliliters, and round to the nearest 0.1 mL.

The recommended single dose for acetaminophen is 10.0 to 15.0 mg per kilogram of body weight for adults. Using this guideline, calculate the maximum dosage in mg, for a single dose, for a person who weighs 147 pounds (Ib).

A children's liquid medicine contains 100 mg of the active ingredient in 5 mL. If a child should receive 250 mg of the active ingredient, how many milliliters of the medicine should the child be given? For the purposes of this question, assume that these numbers are exact. The package states that one teaspoon (tsp) is approximately equal to five milliliter. Calculate the number of teaspoons that the child should receive. Use the approximation as your conversion factor.

How many liters of wine can be held in a wine barrel whose capacity is 26.0 gal? 1 gal = 4 qt = 3.7854 L. (a) 6.87 (b) 0.146 (c) 6.87 x 103 (d) 98.4 (e) 1.46 x 104

A titanium bicycle frame displaces 0.314 L of water and has a mass of 1.41 kg. What is the density of the titanium in g/cm3?

A technical machinist is asked to build a cubical steel tank that will hold 565 L of water. Calculate in meters the smallest possible inside length of the tank. Round your answer to the nearest 0.01 m.

Earth's oceans contain 3.50 x 108 mi3 of water and cover an area of 1.40 x 108 mi2.What is the volume of ocean water in cubic kilometers?

The speed of light in a vacuum is 2.998 x 10 8 m/s. (a) What is its speed in kilometers per hour (km/h)? (b) What is its speed in miles per minute (mi/min)?

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