Principles of Mechanics |
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Common terms and phrases
action angle angle of repose angular velocity apparatus axis axle beam body Boyle's law centre of gravity coefficient of friction compressed cubic curve cylinder depth described diagram direction disc distance drawing energy engine equal equilibrium exerted feet per second fluid foot-pounds forces acting friction fulcrum heat Hence inches of mercury inclined inclined plane increase iron length lever lifting liquid load mass measure mechanical mercury minute motion moving P₁ particle perpendicular pipe piston plunger pound weight pounds pressure principle pull pulley pump quantity radius represented resistance rest resultant revolutions revolutions per minute rotation round Science Exam screw shaft side space specific gravity square inch steam straight line supported surface tension tons triangle tube uniform units valve vertical vessel weight wheel
Popular passages
Page 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.
Page 363 - Shew that if three forces acting on a point keep it in equilibrium, each force is proportional to the sine of the angle between the directions of the other two.
Page 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...
Page 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.
Page 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.
Page 90 - Prop. To find the conditions of equilibrium of any number of forces acting in one plane upon different points of a rigid body.