The Elements of Mechanical PhysicsChapman & Hall, 1864 - 188 σελίδες |
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Συχνά εμφανιζόμενοι όροι και φράσεις
18 inches accelerating force applied ascend atmosphere axis balance barometer barrel base body falls body weighing capstan centre of gravity CHAIN PUMP circumference column cord cubic foot cubic inches cylinder density descends Describe diameter direction displaced fluid distance earth elastic equal exerted Explain the action Explain the construction Fahrenheit feet 6 inches feet long feet per second find the centre fluid foot forces acting friction fulcrum horizontal plane hydrometer immersed inches long inclined plane length Let A B long arm machine magnitude mass mechanical mercury momentum motion moving parallel particles pendulum pinion piston produce equilibrium pump quantity radius represent resistance rest right angles screw SECTION side space specific gravity stone straight lever string supported suppose surface suspended tension threads tical tons triangle tube upward pressure valve vertical height vertical line vessel vibrations wheel and axle windlass
Δημοφιλή αποσπάσματα
Σελίδα 152 - If three forces acting at a point are in equilibrium they can be represented in magnitude and direction by the three sides of a triangle taken in order.
Σελίδα 120 - Face, is equal to the Weight of a. Column of the Fluid, whose Base is the Plane...
Σελίδα 119 - To explain the construction of the common barometer, and to shew that the mercury is sustained in it by the pressure of the air on the surface of the mercury in the basin.
Σελίδα 140 - Enunciate the principle of virtual velocities, and prove it in the case of a bent lever.
Σελίδα 92 - The equatorial diameter of the earth exceeds the polar diameter by about twenty-six miles ; consequently the poles must be nearer to the centre of the earth's attraction than the equator, and gravity must also operate with greater force at the poles than at the equator. Hence, also, the length of a pendulum, to vibrate in any given time, must vary with the latitude of the place. $ The pendulum of a clock is made longer or shorter by means of a screw beneath the weight or ball of the pendulum. The...
Σελίδα 108 - ... 14. If a body of uniform density floats in a fluid, the volume of the part immersed is to the volume of the whole body as the specific gravity of the body is to the specific gravity of the fluid. A piece of cork weighing...
Σελίδα 70 - If three forces, represented in magnitude and direction by the sides of a triangle, act on a point, they will keep it at rest.
Σελίδα 2 - Force is that which changes, or tends to change, the state of rest or motion of the body acted upon.
Σελίδα 13 - F, the weight being between the fulcrum and the power. In a lever of the third kind, fig. III., the power P and the weight W act on the same side of the fulcrum F, as in the latter case, but the power, in this case, is between the fulcrum and the weight.