Upon the removal of the load or force, an object would return to its original size and shape. Mathematically, this can be expressed as F=kx, where F is the deforming force, x is the size of the deformation, and k is the spring constant. In this experiment, the spring constant of the plunger can be determined by applying force on the spring and recording the displacement of the spring plunger. When the force is plotted versus displacement, the slope of the resulting straight line is equal to the spring constant, k. To get the spring potential energy, the formula PEspring = ½ kx2. 2.
The purpose of this lab was to observe the phenomenon of resonance in an open ended cylindrical tube and use resonance to determine the velocity of sound in air at regular temperatures. A hypothesis for this lab was that if the frequency of the tuning fork increased, then the length of the tube to achieve resonance will increase because of the high amplitude of the vibration. The resonance of the open-closed tube was found through these steps. First, the tube was filled with water with an inner tube inside the outer tube. The water temperature was measured.
Furthermore, the cylindrical profile of the component provides supplementary retention as the retentive areas are adjacent to parallel surfaces. The nylon cap attachment is an analog to the ball abutment and engages it from the undercut, while the O-ring is a doughnut shaped attachment. According to Petropolous et al, "the strain energy absorbed during insertion may be divided into elastic (recoverable) and plastic (permanent) components. If the deformation is elastic, no loss of retention is expected. If permanent deformation occurs, incomplete recovery occurs leading to rapid loss of retention."
The grafting of SAN to a rubber component is the most essential part of the synthesis of ABS because it combines a styrene-acrylonitrile copolymer with a rubber substrate. The features of the ABS synthesized will depend on the composition of the reagents involved in the grafting process. This process starts with the abstraction of allylic hydrogens of the rubber substrate or by copolymerization of the double bonds in rubber. The grafting process always leaves a certain amount of ungrafted SAN. The proportion of ungrafted SAN in the final product depends on the conditions used of the manufacture of ABS.
Once this is done, object 1 may be removed and replaced with the rubber stopper having more mass than the first one. (object 2) Note that, because the width of the stopper is more it will require more string to go through the holes and tie it. Using a metric ruler re-adjust the radius, ensuring that it the exact same radius as the first, 18.9cm. Make sure all the safety procedures are followed, then begin your experiment Hold the tube and swing the stopper in a circular motion ( refer to image 2 ) Try using the same amount of force to move the object in circular motion as with the first object. Do this, while also making sure that stopper ( object 2 ) is being swung in circular motion across a horizontal plane Record the time it takes for the stopper ( object 2 ) to complete 20 revolutions Repeat this five times and record all the observations in the second data table Replace object 2 with the rubber stopper having most mass, this will be object 3.
Production of the First Tank “Little Willie” The idea of the tank came from farming vehicles that used tracks so the vehicle wouldn’t get stuck in the mud. The Little Willie was the first tank to ever be made in the world. It was made in the 1915s in Britain and was an early prototype of the tanks that were sent off to the trenches. The first prototype of the Little Willie was still far off from being capable of fighting, because it only went 4/mph and got stuck in the trenches very easily. The main purpose of the Little Willie was to test out the idea of how the tank would work in the trenches and testing its tracks.
Conclusions: • As Newton’s Third Law states, “For every action, there is an equal and opposite re-action.” This was exactly the case for this experiment. Pressure being the force, over area created downward movement due to gravity and the weight of the water expelled the water out of the holes by propelling them in a clockwise direction due to the placement of the holes in the left corner. If the weight was heavier, the speed of the carton would move much quicker. If the weight was lighter, the carton would move slower. This was all due to the pressure becoming much weaker as it loses
In this paper, I will discuss the psychological continuity analysis of personal identity, and an example against the sufficiency of psychological continuity for personal identity with transitivity. Psychological continuity refers to the continuity between individuals in a mental state. This is not a necessary condition for personal identity because memory is not transitive, and identity is. Quantitative sameness means that something is completely identical with something else, which is usually itself. This relationship is best described by Leibniz’s law, which states that “x is identical to y if and only if everything true of x is true of y.” For psychological continuity, episodic memory is the idea that two or more people can be classified
(Engineers say "Stress is proportional to strain".) In symbols, F = kx, where F is the force, x is the stretch, and k is a constant of proportionality. If Hooke's Law is correct, then, the graph of force versus stretch will be a straight line. Tensile testing experiment Purpose of the experiment: Tensile testing is one of the most fundamental tests for engineering,and provides valuable information about a material and its associated properties. These properties can be used for design and analysis of engineering structures, and for developing new materials that better suit a specified use.The basic idea of a tensile test is to place a sample of a material between two fixtures called "grips" which clamp the material.
Each gain in height corresponds to the loss of speed as kinetic energy is transformed into potential energy and vice versa. This model demonstrate the transformation of mechanical energy from the form of potential to the form of kinetic and vice versa. Mechanical energy refers to the total of potential energy and kinetic energy in a system: KEi + PEi = KEf + PEf. The principle of conservation of mechanical energy states that total mechanical energy, which is the addition of potential energy and kinetic energy, remains constant as long as the only forces acting are conservative forces. “A conservative force is defined as a force with the property that the work done in moving an object between two points is independent of the taken path.” ( Robert A. Pelcovits, 2002) Example of conservative forces in this project is gravitational potential energy.