centripetal+force
111Weightlessness — Zero gravity redirects here. For other uses, see Zero gravity (disambiguation). Zero G redirects here. For other uses, see Zero G (disambiguation). 0G redirects here. For other uses, see 0G (disambiguation). Weightlessness (or zero g) is the… …
112Mechanical work — In physics, mechanical work is the amount of energy transferred by a force. Like energy, it is a scalar quantity, with SI units of joules. The term work was first coined in the 1830s by the French mathematician Gaspard Gustave Coriolis. [cite… …
113Frame of reference — A frame of reference in physics, may refer to a coordinate system or set of axes within which to measure the position, orientation, and other properties of objects in it, or it may refer to an observational reference frame tied to the state of… …
114Absolute rotation — In physics, the consideration of absolute rotation rotation independent of any external reference is a topic of debate about relativity, cosmology, and the nature of physical laws. The question of whether absolute rotation is meaningful is… …
115Earth's gravity — Earth s gravity, denoted by g , refers to the gravitational attraction that the Earth exerts on objects on or near its surface. Its strength is usually quoted in terms of the acceleration it gives to falling bodies (acceleration due to gravity),… …
116Artificial gravity — is a simulation of gravity in outer space or free fall. Artificial gravity is desirable for long term space travel for ease of mobility and to avoid the adverse health effects of weightlessness.MethodsArtificial gravity could be created in… …
117Bertrand's theorem — In classical mechanics, Bertrand s theorem [cite journal | author = Bertrand J | year = 1873 | title = Théorème relatif au mouvement d un point attiré vers un centre fixe.| journal = C. R. Acad. Sci.| volume = 77 | pages = 849 ndash;853] states… …
118Geostationary orbit — Geostationary orbit.To an observer on the rotating Earth (fixed point on the Earth), the satellite appears stationary in the sky. A red satellite is also geostationary above its own point on Earth. Top Down View …
119Gas centrifuge — Diagram of a gas centrifuge. A gas centrifuge is a device that performs isotope separation of gases. A centrifuge relies on the principles of centripetal force accelerating molecules so that particles of different masses are physically separated… …
120Kepler problem — In classical mechanics, Kepler’s problem is a special case of the two body problem, in which the two bodies interact by a central force F that varies in strength as the inverse square of the distance r between them. The force may be either… …
