The Elements of Physics: A College Text-book, Volume 1

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Page 33 - 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 224 - Humpty Dumpty sat on a wall: Humpty Dumpty had a great fall. All the King's horses and all the King's men Couldn't put Humpty Dumpty in his place again.
Page 194 - Pressure of mixed gases. — When two or more gases are mixed in a vessel, the total pressure is equal to the sum of the pressures which each component gas would exert if it occupied the vessel alone (Dalton's Law). For example, if the amount of air in a vessel is such that it alone would exert a pressure p and if the amount of water vapor in the vessel is such that it alone would exert a pressure w, then the mixture will exert a pressure p...
Page 199 - A, and the adjacent angular points of the squares joined, the sum of the squares of the three joining lines is equal to three times the sum of the squares of the sides of the triangle.
Page 198 - A mixture of gases having no chemical action on each other exerts a pressure which is the sum of the pressures which would be exerted by each component gas separately if it occupied the containing vessel alone at the given temperature.
Page 67 - CENTER OF GRAVITY: The center of gravity of a body is the point of application of the resultant of all the weight forces in the body for any position of the body.
Page 80 - A. be the moment of inertia of a body of mass M about a given axis passing through the center of mass of the body, and let K...
Page 224 - That would be a rotary engine indeed ! (d) A gas cannot pass directly from a region of low pressure to a region of high pressure, nor can a gas be transferred from a low pressure region to a high pressure region by any means without compensation.
Page 15 - The space between these marks is divided into 10 equal parts, and divisions of like size are continued up the stem. These divisions are numbered upwards from the salt solution mark. A liquid is said to have a specific gravity of 17° Beaume light when the hydrometer sinks in it to mark number seventeen on the scale here described.
Page 223 - Heat cannot pass directly from a cold body to a hot body, nor can heat be transferred from a cold body to a hot body by any means without compensation. This reference to the direct passage of heat from a cold body to a hot body should recall what has been said about a piece of iron lying quietly in a pail of...

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