Dynamic effects in resonant rotation of the Moon, Mercury and Titan considered as an unchangeable non-spherical bodies are studied on the basis of two simple models: firstly, the plane motion on the unperturbed elliptic orbit; secondly, the rotation of Titan on the precessing circular orbit. ...
Physical Libration of the Moon: An Extended Problem Article 30 December 2020 Influence of the Gravitational Fields of the Moon and the Sun on Long-Period Variations in the Proper Rotation of “Midas” Satellites Article 01 July 2018 Impact of a moon on the evolution of a planet’s rota...
For a given number of rotations in a given time period, the angular velocity of an object is the same whether the object is rotating about its own axis or rotating about an axis some distance away. Consider a point that is rotating about an axis that passes through the point and that ...
Displacements of the axis of rotation with respect to the fixed stars (changes in which the whole planet is moving rigidly as one unit) are mainly due to external forces, notably the gravitational interactions between the Earth and the Sun, the Moon and the other planets of the solar system...
The rate of herbage depletion during a period of occupation in a rotational grazing system is dependent on daily intake of animals which in turn is a function of the quality and the quantity of the forage available. When herbage is abundant, daily intake per head increases as nutritive value...
When the elastin content was lowered by repeated stress and damage over a shorter period than recovery, rigidity decreased, as shown in Fig. 5. An elastin content below 5% is thought to cause a sudden drop in rigidity, leading to excessive stretching and tearing. Thus, elastin damage may...
Everything else the same, the lunarAlbedo, the lunar average surfacespecific heat (cp), and the lunarrate of rotation (N)- all of them the same,except for the solar flux. But when the solar flux on our Moon would be Flux = 4.000W/m², the Moon's average surface temperaturewill be...
b) What is the period of this motion? Answer to 3 sig figs. How are the centripetal and tangential components of accleration produced in an object moving in a circular path? Explain why centripetal acceleration changes the direction of ve...
In accordance with certain other examples, the number of cycles or frequency of the sine wave, also referred to herein as the number of pulses, can be used to determine the number of times that the armature has rotated. In the example shown in FIGS. 10A and 10B, one period of the sin...
The extended period of turbulent mixing in the hot disk would likely have been accompanied by continuous loss of volatile elements from the photosphere. We have not modeled this aspect of the problem yet, but abundances of alkali elements suggest loss of about 80% of terrestrial values and ...