 In this and the following examples, answers to the nearest hundredth are sufficiently correct. 11. A cubic foot of platinum, the heaviest substance known, weighs 1365 pounds. A cubic foot of water weighs 62.5 pounds. How many times as heavy as water is...  A Practical Arithmetic - Page 89by George Albert Wentworth - 1897 - 413 pagesFull view - About this book
 | Henry Nathan Wheeler - Arithmetic - 1888 - 314 pages
...find how many cubic feet of water must be drawn off to make the surface sink 1 foot. C. Hoard Measure. A board 1 foot long, 1 foot wide, and 1 inch thick, or its equivalent, is called a BOARD FOOT or 1 FOOT BOARD MEASURE. A like board 2 inches thick contains,... | |
 | George Albert Wentworth - Arithmetic - 1897 - 440 pages
...of a wheel is 0.31831 of its circumference. Find the diameter of a wheel 13 feet in circumference. 10. A cubic foot of water weighs 62.5 pounds, and...knowing that dry white pine is 0.4 as heavy as water. 20. In the United States for 1895 the average yield of hay per acre was 1.06 tons, and the average... | |
 | George Albert Wentworth - Arithmetic - 1897 - 402 pages
...and a cubic foot of mercury weighs 849 pounds. How many times as heavy as water is mercury ? NOTB. In this and the following examples, answers to the...cubic foot. Find the number of cubic feet in 1000 feet cf boards. 18. From the number of cubic feet in 1000 board feet found in example 17, find the weight... | |
 | George Albert Wentworth - Arithmetic - 1899 - 404 pages
...of a wheel is 0.31831 of its circumference. Find the diameter of a wheel 13 feet in circumference. 10. A cubic foot of water weighs 62.5 pounds, and...in example 17, find the weight of 1000 feet of dry tfhite pine boards, knowing that dry white pine is 0.4 as heavy as water. 20. In the United States... | |
 | International Correspondence Schools - Bookkeeping - 1899 - 650 pages
...137 ft. = -== 45} yd. Ans. BOARD MEASURE. 42. In measuring lumber, the unit is the board foot, which is a board 1 foot long, 1 foot wide, and 1 inch (or less) thick. One board foot is equal to ^ of a cubic foot. Hence, to find the number of board feet... | |
 | George Albert Wentworth - Arithmetic - 1902 - 440 pages
...of a wheel is 0.31831 of its circumference. Find the diameter of a wheel 13 feet in circumference. 10. A cubic foot of water weighs 62.5 pounds, and...cubic foot. Find the number of cubic feet in 1000 feet cf boards. 18. From the number of cubic feet in 1000 board feet found in example 17, find the weight... | |
 | Forests and forestry - 1903 - 162 pages
...1 IS o ^ "*;;;;; ( o OSJJjJJJJJJJJJJjJJ VOLUME TABLE FOR WHITE PINE, IN BOARD FEET." Inasmuch as 1 board foot is a board 1 foot long, 1 foot wide, and 1 inch or one-twelfth of a foot thick, 1 cubic foot must be equal to 12 board feet of solid wood. The actual... | |
 | William James Milne - Arithmetic - 1906 - 364 pages
...THIRD BOOK 175 Tj LUMBER MEASURE 309. The unit of lumber measure is the board foot. It is defined as a board 1 foot long, 1 foot wide, and 1 inch thick. Then the number of board feet in a board 1 inch (or less) thick is the same as the number of square... | |
 | Civil engineering - 1906 - 590 pages
...187 ft = -5= 46j yd. Ans. BOARD MEASTTRE. 42. In measuring lumber, the unit is the board foot, which is a board 1 foot long, 1 foot wide, and 1 inch (or less) thick. One board foot is equal to-j^-of a cubic foot. Hence, to find the number of board... | |
 | William James Milne - Arithmetic - 1906 - 364 pages
...and the lowest. LUMBER MEASURE 309. The unit of lumber measure is the board foot. It is defined as a board 1 foot long, 1 foot wide, and 1 inch thick. Then the number of board feet in a board 1 inch (or less) thick is the same as the number of square... | |
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