Theoretical and Practical Mechanics: Designed Principally for Practical MenJ. Weale, 1848 - 325 ページ |
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accelerating force angle of resistance angular velocity avoirdupois base beam breadth cast-iron centre of gravity centre of oscillation cone crank cube root cubic foot cylinder depth diameter direction distance ditto ditto divide engine equal equation equilibrium Extrados fall feet per second fluid formula friction frustrum fulcrum given Hence horizontal impact impulsive force inclined plane inertia length lever limiting angle mass minute moment of inertia momentum moving multiplied muschelkalk number of teeth number of vibrations oolite parabola parallel parallelogram particle pendulum perpendicular pier pressure product will give proportion pulley quantity of matter radii radius rod represent rope Rule semi-arch side space described specific gravity square inch square root suppose surface suspended tan.² triangle velocity acquired vertex vertical vis viva viva weight
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179 ページ - As the weight lost in water is to the whole, or absolute weight ; so is the specific gravity of water ' " to "the specific gravity 'of the body . 2.
24 ページ - ... the power, multiplied by its distance from the fulcrum, is equal to the weight, multiplied by its distance from the same point. Prom this, simple rules may be deduced for calculation. To know the power to be applied, at a certain distance from the fulcrum...
179 ページ - ... so that the mass compounded of the two may sink together. Weigh the denser body and the compound mass, separately, both in water and out of it ; then find how much each loses in water, by subtracting its weight in water from its weight in air ; and subtract the less of these remainders from the greater. Then...
13 ページ - Hence the moment of the resultant is equal to the sum of the moments of its components.
184 ページ - The workmen thought that substituting part silver was only a proper <perquisite; which taking air, Archimedes was appointed to examine it ; who, on putting...
51 ページ - The centres of gravity of the surface of a cylinder, of a cone, and of a conic frustrum, are respectively at the same distances from the origin as are the centres of gravity, of the parallelogram, triangle, and trapezoid, which are vertical sections of the respective solids.
31 ページ - In the wheel and axle, an equilibrium takes place when the power multiplied by the radius of the wheel, is equal to the weight multiplied by the radius of the axle ; or, P : W : : CA : CB.
179 ページ - The reason is, all bodies lose some of their weight in a fluid, and the weight which a body loses in a fluid, is to its whole weight, as the specific gravity of the fluid is to that of the body.
179 ページ - If the specific gravity of the fluid be greater than that of the body, then the quantity of fluid displaced by the part immersed is equal to the weight of the whole body.
253 ページ - One-third of the above weights is considered sufficient in most cases for a permanent load. To find the strength of any rectangular beam supported at both ends and loaded in the middle, or supported in the middle and loaded at both ends.