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الكتب الكتب 71 - 80 من 103 فيThere is an equilibrium upon the wheel and axle when the power is to the weight as....
" There is an equilibrium upon the wheel and axle when the power is to the weight as the radius of the axle to the radius of the wheel. "
The Civil-engineer & Surveyor's Manual: Comprising Surveying, Engineering ... - الصفحة 4
بواسطة Michael McDermott - 1879 - عدد الصفحات: 586
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Natural Philosophy for Beginners: With Numerous Examples, الجزء 1

Isaac Todhunter - 1877
...When there is equilibrium on the Wheel and Axle the Power must be to the Weight in the same proportion as the radius of the Axle is to the radius of the Wheel, For it is easy te see the clnse resemblance between this machine and a Lever of the first class. It...
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Elementary Treatise on Physics: Experimental and Applied, for the Use of ...

Adolphe Ganot - 1877 - عدد الصفحات: 923
...wheel and axle respectively, and in all cases equilibrium exists where the power is to the resistance as the radius of the axle is to the radius of the wheel. Thus in fig. 20, P : Q = bf : ac, or P x ac = Q x bf. In fig. 21 which represents the essential parts...
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Mechanics for Beginners: With Numerous Examples

Isaac Todhunter - 1878 - عدد الصفحات: 400
...machine round the axis in opposite directions. 182. When there is equilibrium on the Wheel and Axle, the Power is to the Weight as the radius of the Axle is to the radius of the Wheel. 119 It may be assumed, that the effects of the Power and the Weight will not be altered if we suppose...
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The New Text-book of Physics: An Elementary Course in Natural Philosophy

Le Roy Clark Cooley - 1880 - عدد الصفحات: 317
...that BC is the radius of the axle. Then the proportion teaches us that the power and weight will be in equilibrium when the power is to the weight as the radius of the axle is to the radius of the wheel. The Compound Wheel and Axle When more than one wheel and axle are connected, so that the axle of each...
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The New Text-book of Physics: An Elementary Course in Natural Philosophy ...

Le Roy Clark Cooley - 1880 - عدد الصفحات: 317
...that BC is the radius of the axle. Then the proportion teaches us that the power and weight will be in equilibrium when the power is to the weight as the radius of the axle is to the radius of the icheel. If the radius of the axle is one foot, and that of the wheel three feet, then one pound upon...
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An advanced manual of teaching for teachers of elementary and higher schools

Advanced manual - 1880
...would then represent a lever of the first order. (2) In this state of equilibrium,"as in the lever, the power is to the weight as the radius of the axle is to the radius of the wheel. (3) When we overcome the weight by applying a greater power, we keep bringing into play an endless...
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Manuals of the science and art of teaching. Advanced ser

Manuals - 1880
...would then represent a lever of the first order. (2) In this state of equilibrium,"as in the lever, the power is to the weight as the radius of the axle is to the radius of the wheel. (3) When we overcome the weight by applying a greater power, we keep bringing into play an endless...
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Mechanics for Beginners with Numerous Examples

Isaac Todhunter - 1882 - عدد الصفحات: 400
...machine round the axis in opposite directions. 182. When there is equilibrium on the Wheel and Axle, the Power is to the Weight as the radius of the Axle is to the radius of the Wheel. Let two circles having the common centre C represent sections of the Wheel and Aile respectively, made...
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A Text Book of Elementary Mechanics, for the Use of Colleges and Schools

Edward Salisbury Dana - 1881 - عدد الصفحات: 291
...of P and W about the axis must be equal to zero. That is, P.AF= W.BF. IfAF=R, and BF - r, then P r The Power is to the Weight as the radius of the axle is to the radius of the wheel. 204. Since the power, if applied by a rope as here, must always act at right angles to the radius of...
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Natural Philosophy for Common and High Schools

Le Roy Clark Cooley - 1899 - عدد الصفحات: 246
...equilibrium states, that the power and weight will be in equilibrium when the power is to the weignt as the radius of the axle is to the radius of the wheel. For the movable pulley with a single rope the law states, that the power and weight will balance each...
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