Intermolecular forces

Stress: Stress is defined as ‘’the force across a boundary per unit area, for all orientations of that boundary.’’ It is derived from force, a physical quantity and area, a geometrical quantity. Therefore, stress is also characterized as a fundamental quantity, like velocity, energy, etc. that can be brought under quantification and can be analyzed without any obvious attention of the physical grounds of the material or of its nature. Example: When a solid bar is supporting a load, each…

This rib is also suitable for a variety of loading conditions. Forged ribs are manufactured using heavy press-machinery, and are used for sections where very high loads apply. Milled ribs are solid structures, manufactured by milling away excess material from a solid block of metal, and are also used where very high loads apply. The stringers on the skin panels run in the length of the wing, and so usually need to bridge the ribs. There are several methods for dealing with this problem. The…

Independence is always a key component to self-learning and a way to become a protagonist. Once something becomes a problem, it is in our mind that we must fix the issue before it becomes even more of an issue. We must learn to overcome any obstacles that may arise when it comes to learning because it is necessary to overcome obstacles in our life as well. If it is hard to deal with stress, then it is most likely going to be hard to be motivated and complacency may settle in as it becomes easy…

basically a two-armed spring that stores mechanical “potential energy” once the string is drawn and pulls back the limbs. After you recoil the cord, you utilize your muscles to exert a force on the string that bends the limbs backward. The quantity of force that your fingers exert on the string once you’ve to force it all the means back is named the “draw weight.” The elastic or spring energy is currently “potential energy” that may be reborn into launching associate arrow after you unleash the…

"When I first went to college, some upperclassmen took me aside and asked me if I wanted to graduate. I said, 'Well, yes, of course, I do! ' Then they asked me what kind of grades I wanted to get. I said that I wanted to do very well. 'Then, you will have to learn to love studying, ' they said." "College is full of distractions, worries and problems. There 's always trouble but if you love studying then you will find a way to do what you need to do anyway, no matter what happens. If you don…

Laney is a special education teacher in her first year of teaching with a large caseload. She is feeling overwhelmed in the position but isn’t really sure if how she feels is normal in comparison to other teachers. She talks to other students in her internship program, but they just look at her like she is nuts because most of them are in general education classrooms and when she describes some of the things that go on in her classroom, they are simply flabbergasted. Laney is wondering if…

The key objective of this laboratory experiment is to help the students understand the concept of shear stress and normal stress on a cross sectional area of a surface or rocks, and to be capable of constructing failure envelops. As we spread or stacked the pennies on a piece of paper placed on the table, we inflict a normal stress on the paper. We then created the shear stress by putting pennies into the cup that was connected to the paper on the table by a strain, and the number of pennies…

1. C Why: according to Newton’s first law of motion, an object that is free from all outside forces travels at a constant velocity, covering equal distances in equal times along a straight-line path, C is true. 2. D Why: not matter an object is still or is in motion, the object has inertia all the time. Inertia is a nature/property of any objects. 3. D Why: the ship is moving at a constant speed, which is in a balanced status. For the athlete, it would be likely to do a long jump on ground.…

Men and women have always differed in terms of salary. This has been true for many years and still continues today. Equality in the work force has always been a common issue of debate because of the pay gap that exists. The pay gap not only effects women but also effects people of minorities. Though there has been progress in working towards reducing the gap and creating a more equal environment for all, there is still much progress to be done. In the working world, as of 2012 women made 80.9…

There are 2 types of strengths that materials can be tested on: Comprehensive strength and Ultimate Tensile strength. Ultimate Tensile strength is measured by how much stress can a material withstand, while being stretched or pulled apart before breaking, while comprehensive strength is how much van the material resists while being pushed in (together). There is also a Yield Strength- the point at which the material starts to slowly break and cannot come back to it’s shape. Before the yield…