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Allyn and Bacon, 1917 - 478 pages
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Page 83 - Every body continues in its state of rest, or of uniform motion in a straight line, unless it is compelled to change that state by forces impressed upon it.
Page 49 - At a constant temperature the volume of a given mass of gas varies inversely as the pressure sustained by it. If the volume of gas v under a pressure p becomes volume v' when the pressure is changed to p', then by the law: , — •=*—; whence pv = V.
Page 124 - ... the work done in overcoming the resistance, except that some of the applied energy may be dissipated as heat or may not appear in mechanical form. A machine can never produce an increase of energy so as to give out more than it receives. Denote the applied force, or effort, by E and the resistance by R, and let D and d denote the distances respectively through which they work. Then from the law of conservation of energy, the effort multiplied by the distance through which it acts is equal to...
Page 178 - This experiment shows that the intensity of illumination varies inversely as the square of the distance from the source of light.
Page 5 - ... the centimeter as the unit of length, the gram as the unit of mass, and the second as the unit of time.
Page 37 - Therefore, the specific gravity of a solid or a liquid body is the ratio of its weight to the weight of an equal volume of water...
Page 337 - The advantage of this form lies in the fact that all lines of magnetic force are closed curves, passing through the core from the south to the north pole, and completing the circuit through the air from the north pole back to the south pole.
Page 321 - Such an electromotive force as would cause a current of one ampere to flow through a resistance of one ohm.
Page 257 - The relative humidity of the air is the ratio between the amount of water vapor actually present and the amount that would be present if the air were saturated at the same temperature.

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