Mass movements can be caused by increases in shear stress, such as loading, lateral pressure, and transient forces. Alternatively, shear strength may be decreased by weathering, changes in pore water pressure, and organic material. This paper presents a review of different parameters of slope’s stability under blasting-induced vibration. Similarity of blasting vibrations to earthquake motions has produced a predictable transfer of analytical techniques from earthquake engineering. This transfer allows quantifying the influence of blasting waves on the rock mass of the slope and on soil slopes.
B) They are usually only sparingly soluble in water. C) They often form super-saturated aqueous solutions. D) They readily dissolve and ionize in
Potential Energy - Is the energy stored in an object due to its position in a force field or in a system due to its configuration. 4. Kinetic Energy - An object is the energy that it possesses due to its motion. 5. Friction - Is the force resisting the relative motion of solid surfaces, fluid layers, and material elements sliding against each other.
The other siliceous rock is Pumice, a light weight, porous rock formed from liquid rock with a great quantity of finely dispersed gas bubbles. Most of the pumice is so light that it will float on water. Another rock, basalt, is found only at lower elevations in the park. Basalt is a dense, hard rock which is dark colored because of the predominance of Ferro-Magnesian
These metals have only one electron in their outer shell. This means they are ready to lose that one electron in ionic bonding with other elements. As with all metals, the alkali metals are malleable, ductile, and are good conductors of heat and electricity. The alkali metals are softer than most other metals. Cesium and francium are the most reactive elements in this group.
| 3/29/2011 | | | | CIVL462 – Laboratory ReportGeomechanics 2 | | | | | | Justin Hill 3463527 Group 2 | CIVL462 – Laboratory Report Geomechanics 2 Direct Shear Test Introduction The shear strength is one of the most important engineering properties of a soil as it is required whenever a structure is built. Structures require foundations in the ground and solid foundations are dependent on a soil’s shearing resistance. Moreover, the shear strength is needed for engineering situations such as calculating the pressure exerted by a soil on a retaining wall, sheet piling, determining the stability of slopes or cuts and determining the bearing capacity for foundations. In this Laboratory, a direct shear device will be used to determine the shear strength of a cohesionless soil. In this case, dry river sand was used.
6. Zinc Sheet: a rectangular, thin, sheet like metal, gray/silver. 6 5 4 3 2 1 * Solubility of solid iodine; 1. Solid iodine in 1 mL of water is slightly soluble, because the solution turns into a light brown/yellow color. However majority of the solid Iodine was left at the bottom of the test tube; which leads to the conclusion that it’s not reactive on water.
A good example of where a large surface area is used for a fast rate of diffusion is in the alveoli of the lungs. Alveoli are the ‘air sacs’ at the end of the airways in the lungs where the exchange of carbon dioxide and oxygen takes place between the air in the alveoli and the blood in capillaries. Both the alveoli and the capillaries are extremely thin, only one cell thick, which increases the rate of diffusion, but the alveoli also have an extremely large surface area. This is because they take the shape of small spheres, giving them a large surface area to volume ratio. Another example of where surface area is maximised to increase the rate of diffusion is in the small intestine.
28 October 2008 Introduction: Static and kinetic friction are forces that are a result of two surfaces in contact with each other. Static friction is the force that must be overcome to cause an object to begin moving, while kinetic friction occurs between two objects in motion relative to each other. The kinetic friction force, Ff, kinetic, is defined by Ff, kinetic = μkFN, where μk is the coefficient of kinetic friction and FN is the normal force acting on the object. The maximum static frictional force Ff, max static, is defined by Ff, static = μsFN where μs is the coefficient of static friction and FN is the normal force on the object. The maximum frictional force that must be overcome before movement is able to begin is μsFN.
The Speed of Sound: | Sound travels at different speeds depending on what it is traveling through. Of the three mediums (gas, liquid, and solid) sound waves travel the slowest through gases, faster through liquids, and fastest through solids. Temperature also affects the speed of sound.Gases:The speed of sound depends upon the properties of the medium it is passing through. When we look at the properties of a gas, we see that only when molecules collide with each other can the condensations and rarefactions of a sound wave move about. So, it makes sense that the speed of sound has the same order of magnitude as the average molecular speed between collisions.