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acting action angle applied axis balance beam becomes body called centre of gravity compressed constant curve cylinder depth described diagram diameter direction distance drawing effect energy engine equal equilibrium example experiment falling feet fluid follows force forces acting friction given heat Hence horizontal inches inclined increase iron length lever lifting liquid load mass matter means measure mechanical mercury minute motion moving parallel particle pass perpendicular piston placed plane portion position pounds pressure principle produced pull pulley pump quantity raised represented resistance respectively rest resultant rise rotation round screw shown side space square steam straight supported suppose surface tons triangle true tube turn uniform units valve velocity vertical vessel volume weight wheel
Сторінка 16 - Every body continues in its state of rest or of uniform motion in a straight line, except in so far as it may be compelled by impressed forces to change that state.
Сторінка 206 - Def. The specific gravity of a solid or liquid substance is the ratio of its density to that of water, or, in other words, it is the ratio of the weight of a given volume of the substance to that of an equal volume of water. The water is distilled, and the temperature is 60° F. Def. The specific gravity of a gas is the ratio of the weight of a given volume of the gas to that of an equal volume of air at the same temperature and pressure. The standard temperature is 60° F., and the pressure is that...
Сторінка 41 - To every action there is always an equal and contrary reaction ; or the mutual actions of any two bodies are always equal and oppositely directed.
Сторінка 81 - If any number of forces, acting at a point, can be represented in magnitude and direction by the sides of a polygon taken in order, they will be in equilibrium.