Elementary Thermodynamics
by John Parker
Format: Paperback
ISBN13: 9781152516540
Paperback|9781152516540
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Overview
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. 1891 edition. Excerpt: ... will be constant and equal to aE. The orbit of E about G will then evidently be a circle whose radius depends on aE. If the orbit of E about G be not circular, the orbital angular velocity of E will not be constant: if the orbit be circular but not of the proper dimensions, the orbital angular velocity will be constant but not equal to aE. To illustrate what would happen in either of these cases, let us suppose that at the time t, the orbital angular velocity of E about G is less than toE, or equal to toE and decreasing. Then in a short time, the tides will have been carried in front of the line SGE; while, on the other hand, the attraction of S will tend to bring them back to that line. The attraction of S will therefore prevent them from fully participating in the rotation of E about its axis, so that they will act as a friction brake on the motion. Similarly, if the orbital angular velocity at the time t be greater than toE, or equal to toE and increasing, the tides will soon be left behind the line SE, while the attraction of S will tend to drag them on. Thus they will again have a frictional action, but this time they will accelerate the rotation of E on its axis. It will thus be seen that the ultimate effect of the tides on the system will be to make it move as rigid, whether the two bodies are ultimately fused into one, or are merely in contact, or whether they continue to move as distinct bodies at a distance from one another under the influence of gravitation alone. In any case, all parts of the system will ultimately describe circular orbits about G with the same constant angular velocity. Suppose now that, at the time t, the two bodies are rotating about their axes without mechanical vibrations, with angular velocities...
| ISBN-13 | 9781152516540 |
|---|---|
| ISBN-10 | 115251654X |
| Weight | 0.51 Pounds |
| Dimensions | 9.00 x 6.00 x 0.35 In |
| List Price | $19.99 |
| Format | Paperback |
|---|---|
| Pages | 150 pages |
| Publisher | |
| Published On | 2010-01-01 |
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