A sports-utility vehicle has an average mileage rating of 18 miles per gallon. How many gallons of gasoline are needed for a 389-mile trip?
A dime weighs 2.5 g. What is the dollar value of exactly 1 kg of dimes?
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3. The mass of a hydrogen atom is 1.67×10-18 micrograms. Convert this mass into pounds. [lb=453.59g = 16 oz]
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A crystallographer measures the horizontal spacing between molecules in a crystal. The spacing is 13.64 nm. What is the total width of a crystal in mm that is 1×105 molecules across?
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What is the speed of light (c = 3.0×108 m/s) expressed in furlongs per fortnight?
[furlong = 201.168 m, fortnight = 14 days]
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The original (1955) Ford Thunderbird was powered by a 292-cubic-inch (displacement) engine. The 2005 Thunderbird was powered by a 3.9-liter engine. Which engine was bigger? Explain.
[in=2.54 cm]
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“Fifty eggs gotta weigh a good six pounds.” Cool Hand Luke (1967). According to the USDA large eggs weigh 24 ounces per dozen eggs. What is the mass of 50 eggs expressed in pounds? [lb=453.59g = 16 oz]
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Whoever guesses the closest to the actual number of jellybeans it contains, wins a huge jar a jellybeans. You think the volume of the jar is about 3 liters and found that a 200 mL jar can hold 40 jellybeans. Estimate the number of jellybeans in the large jar.
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You are mixing some concrete for a home project, and you've calculated according to the directions that you need six gallons of water for your mix. But your bucket isn't calibrated, so you don't know how much it holds. On the other hand, you just finished a two-liter bottle of soda. If you use the bottle to measure your water, how many times will you need to fill it?
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Saffron is a spice used in Mediterranean cooking. It is a potentially profitable crop since it is very expensive ($72.00 for a 0.25 oz packet). Saffron is the stamen of a crocus sativus flower which blooms for only three weeks every fall. How many square feet must be planted with autumn crocuses to produce a million dollars ($1.0×106) worth of saffron? [lb=453.59g = 16 oz]
Potentially useful information:
- A bulb requires one square foot to grow and produces four harvestable flowers per season.
- Each flower contains three long, red-orange stamens.
- It takes about 300 handpicked stamens to produce 1.00 gram of saffron.
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The men's world record for the hundred-meter (100.0 m) dash was set by Usain Bolt in 2009. His official time was 9.58 s. What was his average speed in miles per hour?
The fastest time for the Kentucky Derby is 1 minute and 59 seconds, set in 1973 by a horse named Secretariat. What was Secretariat’s average speed (in miles per hour) over the 1.25-mile race?
[12 inch=foot, 1 mile=5280 feet, 1 meter=39.37 inch]
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