 W, where a and b are constants depending on the amount of friction in the machine. If a force of 7 pounds will raise a weight of 20 pounds, and a force of 13 pounds will raise a weight of 50 pounds, what force is necessary to raise a weight of 40 pounds...  A Review of Algebra - Page 31by Romeyn Henry Rivenburg - 1914 - 80 pagesFull view - About this book
 | Henry Lewis Rietz, Arthur Robert Crathorne, Edson Homer Taylor - Algebra - 1915 - 266 pages
...force P necessary to lift a weight W by means of a certain machine is given by the formula P = a + bW, where a and b are constants depending on the amount...force of 13 pounds will raise a weight of 50 pounds, find the force necessary to raise a weight of 40 pounds. (First determine the constants a and b.) (HARVARD)... | |
 | Florian Cajori, Letitia Rebekah Odell - Algebra - 1916 - 238 pages
...circles having the vertices as centers, each being tangent externally to the other two. Harvard. 14. The force P necessary to lift a weight W by means...of 40 pounds ? (First determine the constants a and 6.) Harvard. 15. Find the sum of 8 terms of the progression 5 + 3£ + 2f + . . -. Harvard. 16. How... | |
 | Florian Cajori - 1916 - 236 pages
...force P necessary to lift a weight W by means of a certain machine is given by the formula P = a + b W, where a and b are constants depending on the amount...(First determine the constants a and b.) Harvard. 16. Find the sum of 8 terms of the progression 5 + 3| + 2f + • • -. Harvard. 16. How many terms... | |
 | Edward Ira Edgerton, Perry Amherst Carpenter - Algebra - 1923 - 426 pages
...force P necessary to lift a weight W by means of a certain machine is given by the formula P = a + bW, where a and b are constants depending on the amount...force is necessary to raise a weight of 40 pounds ? Hint: First find the values of a and b in that machine. 34. Find two numbers whose sum is a and whose... | |
 | Edward Ira Edgerton, Perry Amherst Carpenter - Algebra - 1924 - 490 pages
...force P necessary to lift a weight W by means of a certain machine is given by the formula P = a + b W, where a and b are constants depending on the amount...necessary to raise a weight of 40 pounds ? (First find the values of a and b in that machine.) 34. Find two numbers whose sum is a and whose difference... | |
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