Synopsis
This historic book may have numerous typos and missing text. Purchasers can download a free scanned copy of the original book (without typos) from the publisher. Not indexed. Not illustrated. 1917 Excerpt: ... be 75.00 cm. with this scale when the temperature is 20C? 502. At what temperature will a steel tape be exactly 1 meter long, if at 0C its length is 99.80 cm.? 503. The volume occupied by air in a constant pressure air thermometer is 50 cm3. in ice water and 68.3 cm3. in steam at 76 cm. pressure. What is the temperature when the volume is 60 cm3.? 504. What is the coefficient of expansion of mercury if in an experiment arranged like the classical one of Dulong and Petit (absolute determination of the coefficient of expansion by balancing liquid columns of different temperature) the heights were observed to be 10 cm. and 10.18 cm. and the temperatures 0C and 100C respectively? 505. By how much will the buoyant force on an iron sphere of 10 cm. diameter, immersed in water at 0C change, when the water is heated to100C? 506. Find the mass in gms. of the air in a lecture room at 25C and 74 cm. Hg pressure the dimensions of the room being 17 meters X 17 meters X 4 meters. 507. A given mass of air at 20C and 1 atmosphere pressure occupies a volume of 5000 cm3. To what temperature must it be raised if it is to occupy a volume of 6000 cm3. at 2 atmospheres pressure? 508. The density of air under standard conditions is 0.001293. What volume does 1 gm. of air occupy at a pressure of 74 cm. mercury and at 20C? 609. A bar of copper is 0.034 in. longer at 25C than at 5C Its coefficient of linear expansion is 0.000017. What is its true length at 0C? 510. In what proportion will the period of vibration of a steel bar vibrating as a pendulum about one end change when the temperature drops from 20C to 0C? 511. A square plate of side L0 at 0 with one corner fixed is heated to t. Illustrate graphically the area at t, and show what term is neglected if we assume that the coeff...
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