Search results
Results from the WOW.Com Content Network
The applied tension () is a function of the total angle subtended by the rope on the capstan. On the verge of slipping, this is also the frictional force, which is by definition μ {\textstyle \mu } times the normal force R ( φ ) {\displaystyle R(\varphi )} .
Tension is the pulling or stretching force transmitted axially along an object such as a string, rope, chain, rod, truss member, or other object, so as to stretch or pull apart the object. In terms of force, it is the opposite of compression. Tension might also be described as the action-reaction pair of forces acting at each end of an object.
A block and tackle is characterized by the use of a single continuous rope to transmit a tension force around one or more pulleys to lift or move a load. Its mechanical advantage is the number of parts of the rope that act on the load. The mechanical advantage of a tackle dictates how much easier it is to haul or lift the load.
A Tensionless hitch is an anchor knot used for rappelling or rope rescue. Unlike most knots, the tensionless hitch retains a 100% efficiency rating, [ 3 ] meaning the strength of the knot is equal to the strength of the rope; it is not a significant stress riser .
The liquid rope coil effect or liquid rope coiling is a fluid mechanics phenomenon characterized by the steadily rotating helical structure formed when pouring a thin stream of viscous fluid from a sufficient height onto a surface, resulting from a buckling instability in which the initially vertical fluid stream becomes unstable to bending deformation under axial compressive stress.
In theory, the second rope burns out in 15 s, giving a total of 45 s. In recreational mathematics , rope-burning puzzles are a class of mathematical puzzle in which one is given lengths of rope, fuse cord , or shoelace that each burn for a given amount of time, and matches to set them on fire, and must use them to measure a non-unit amount of time.
The Bond number can be thought as the ratio of the weight of an object and the surface tension, as [7] =, where M is the mass of the object and L its contact perimeter lenght. An object or an insect can float on water due to surface tension if Bo < 1.
If the tension on a string is ten lbs., it must be increased to 40 lbs. for a pitch an octave higher. [1] A string, tied at A , is kept in tension by W , a suspended weight, and two bridges, B and the movable bridge C , while D is a freely moving wheel; all allowing one to demonstrate Mersenne's laws regarding tension and length [ 1 ]