 Levers are divided into three classes: in the first class, the fulcrum ' is between the power and the weight ; in the second class, the fulcrum is...  Junior Science - Σελίδα 339των John Charles Hessler - 1921 - 533 σελίδεςΠλήρης προβολή - Σχετικά με αυτό το βιβλίο
 | James Renwick - 1822 - 476 σελίδες
...lever according to the respective positions of the power, the weight, and the fulcrum. In the first, the fulcrum is between the power and the weight. In the second, the weight is between the power and the fulcrum. And in the third, the power is between the fulcrum... | |
 | 1824 - 492 σελίδες
...according to the relative positions of the power, the weight, and the fulcrum, or prop. In the first kind, the fulcrum is between the power and the weight ; in the second, the weight is between the prop and the power ; and, in the third, the power is between the weight and... | |
 | 1847 - 292 σελίδες
...motion, is the Fulcrum or Prop. THE LEVER. There are three kinds of Levers in use. In the first kind the fulcrum is between the power and the weight. In the second, the fulcrum is atone end, the power at (he other, and the weight between them. In the third, the power... | |
 | Mrs. Lincoln Phelps - 1848 - 330 σελίδες
...according to the position of the power and weight with respect to the fulcrum. In the first kind of lever, the fulcrum is between the power and the weight ; in the second kind, the weight is between the power and fulcrum ; in. the third kind, the power is between the weight... | |
 | Alonzo Gray - 1850 - 422 σελίδες
...power must be proportionably increased to sustain the weight. Levers are of three kinds. In the first, the fulcrum is between the power and the weight. In the second, the weight is between the fulcrum and the power ; and in the third, the power is between the fulcrum... | |
 | David Ames Wells - 1857 - 492 σελίδες
...What are the relative positions of ttie power, fulcrum .and weight in the three kinds of levers f 201, In the first class the fulcrum is between the power and the weight ; in the second class, the fulcrum is at one end of the lever, and the weight is between the fulcrum and the power ; in the third... | |
 | David Ames Wells - 1858 - 466 σελίδες
...the 199. The FULCRUM, or prop, is the name i.itaum* applied to the axis, or point of support. 201. In the first class the fulcrum is between the power and the weight ; in the second class, the fulcrum is at one end of the lever, and the weight is between the fulcrum and the power ; in the third... | |
 | David Ames Wells - 1860 - 478 σελίδες
...of support. What are the rclatire podpower, fulcrum ond class, the fulcrum is at one end of the 201, In the first class the fulcrum is between the power and the weight ; in the secthethreukimia lever, anil the weight is between the fulcrum and the power ; in the third class,... | |
 | Benjamin Silliman - 1865 - 808 σελίδες
...the fulcrum in relation to the power and weight. 55 56 Fig. 55 is a lever of the first class, where the fulcrum is between the power and the weight. In the second class, fig. 56, the weight is between the fulcrum and the power. In the third class, fig. 57, the power is... | |
 | Isaac Todhunter - 1866 - 386 σελίδες
...sustain or overcome the other force, or the weight. There are three species of levers : in the first the fulcrum is between the power and the weight ; in the second the weight acts between the fulcrum and the. power; and in the third the power acts between the fulcrum... | |
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