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Description: "Rotational slides move along a surface of rupture that is curved and concave" (Varnes, 1996) Speed: extremely slow to extremely rapid. Type of slope: slope angle 20–40 degrees [5] Control factor: morphology and lithology. Causes: Vibration, undercutting, differential weathering, excavation, or stream erosion
In classical mechanics, free fall is any motion of a body where gravity is the only force acting upon it. A freely falling object may not necessarily be falling down in the vertical direction . If the common definition of the word "fall" is used, an object moving upwards is not considered to be falling, but using scientific definitions, if it ...
This variation can move the gondola at speeds faster than free fall and can alternatively be configured to accelerate gondolas in the opposite direction, moving at fast speeds up the tower as well as down. [2] Drop towers can vary in height and capacity, and some models are either mass-produced or custom.
A rockfall or rock-fall [1] is a quantity of rock that has fallen freely from a cliff face. The term is also used for collapse of rock from roof or walls of mine or quarry workings. The term is also used for collapse of rock from roof or walls of mine or quarry workings.
The free-fall time is the characteristic time that would take a body to collapse under its own gravitational attraction, if no other forces existed to oppose the collapse. As such, it plays a fundamental role in setting the timescale for a wide variety of astrophysical processes—from star formation to helioseismology to supernovae —in which ...
This is an accepted version of this page This is the latest accepted revision, reviewed on 14 January 2025. This is a list of onomatopoeias, i.e. words that imitate, resemble, or suggest the source of the sound that they describe. For more information, see the linked articles. Human vocal sounds Achoo, Atishoo, the sound of a sneeze Ahem, a sound made to clear the throat or to draw attention ...
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Newton's original plan for Philosophiæ Naturalis Principia Mathematica was that it should consist of two books, the first analyzing basic laws of motion, and the second applying them to the Solar System.