This chapter considers the gravitational field of the earth. The chapter mentions the forces acting on elementary volume of the rotating Earth in an inertial frame and considers the second Newton's law in non-inertial system. It introduces the centrifugal force and gravitational field, as well as...
The external gravitational field of the Earth is not axially symmetric but is irregular, described by series of the spherical harmonic functions. In the local inertial coordinate system the field is rotating following the rotation of the Earth. In the Newtonian interpretation the field is rotating ...
VARIATIONS in the perigee radius have been observed for three satellites so far. The first of these is Vanguard I (1958 beta), which was used by O'Keefe et al. 1 in calculating the third and fifth axial harmonics of the Earth's field. The other two are Transit I B (1960 gamma) ...
2.Based on engineering practices and theoretic studies in many years,combined with Earthgravity fieldtheory,have made new annotation on retaining wall working mechanism,pointed out the friction between retaining wall bottom and contacting rock and soil bodies is the sticking point of retaining wall sta...
Gravity prospecting involves the measurement of variations in thegravitational fieldof the earth. 重力勘探意味着测量地球重力场的变化. 辞典例句 We may be able to escape the black hole'sgravitational field. 我们也许能逃出黑洞的引力场. 互联网
And thus its gravitational field. 重力场也是这个样子。 The moon is in capture of the Earth's gravitational field. 月球被地球的重力场吸引。 权威例句 Exact gravitational field of a string Gravitational field of vacuum domain walls and strings ...
The Earth's gravitational field is defined by the distribution of mass within the Earth and its surroundings, including variations caused by factors like tides, atmospheric disturbances, and mantle convection. This field can be observed using satellites or ground-based instruments to study geophysical ...
the Earth's gravitational field on the propagation velocities of gravitational and electromagnetic waves in these theories. Experiments to test the predictions of this class of theories are discussed. Until recently it was assumed that the phase velocities of gravitational and electro- magnetic waves ...
The gravitational field at a point in space equals the gravitational force experienced by a test particle placed at that point divided by the mass of the test particle. Note that the presence of the test particle is not necessary for the filed to exist -- the Earth creates the gravitational...
Related to Gravitational fields: Gravitational field strengthgravitational field n (General Physics) the field of force surrounding a body of finite mass in which another body would experience an attractive force that is proportional to the product of the masses and inversely proportional to the squa...