Physical Problems and Their Solutions

Physical Problems and Their Solutions

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This historic book may have numerous typos and missing text. Purchasers can usually download a free scanned copy of the original book (without typos) from the publisher. Not indexed. Not illustrated. 1897 edition. Excerpt: ... weighted with mercury sinks to a point corresponding to ii of its height in water at 4 C. To what point of its height will it sink in water at 20 (1., water from 4 to 20 expanding 0.00179 of its volume, the expansion of the glass being neglected 5' Let x be the fraction of the height to which the tube will sink. The-volume of water at 20 is equal to its volume at 4, v, --0.00179 v, = 1.00179 of the volume at 4. The volume displaced by the tube at 4 is equal to its area X height sunk, or 12' = a X 0.75 h. The volume displaced at 20 will be 43,0 = a X h ac, but since the volume at 20 = 1.00179 of the volume at 4, this gives a ha c = ah X 0.75 X 1.00179, from which a c = 0.7513 of the height. 132.--The volume v of a gas is 20 liters at the temperature t of 60 C. What will be its 'volume, V1 at the temperature t1 of 100 0., the pressure remaining constant? Let vo be the volume of the gas at 0 0., and )=22.40 liters. 133.--The volume of a gas at the temperature t of 60 C. and at the pressure of 0.76 of a meter ls 20 liters (v t). What will be the volume v t, ef the same gas, at the temperature of 100 C., the pressure p, being 0.72 ry" a meter? Had the temperature remained constant the volumes would have been inversely as the pressure, and calling v1 what the volume 12 tat the pressurep would have been at the pressure pl, we have Had the pressure remained constant and equal to p1 corresponding to 0, while the temperature varied from t to t1, we should have had ' I Kt " 'I Z substituting the value of 1:1 gives _ L 1 + Ki vtr-vt. pl. l+Kt Substituting the values given in this 134.--A rubber bag contains 4 liters of air at 30 C. and at the pressure of 76 centimeters. What will be the volume of the air when the bag is...
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Product details

  • Paperback | 34 pages
  • 189 x 246 x 2mm | 82g
  • United States
  • English
  • black & white illustrations
  • 1236839382
  • 9781236839381