Critical mass Essays

The “critical mass” number changes from group to group. For example, the “critical mass” of no-workers is one, while the number for joke-workers is about one half of the workgroup. The anarchy can be different from group to group. Using the above group, the anarchy caused by no-workers is severely

Mass fashion for young people: A critical examination of the high street “The fat cats of the rag trade know where to go when they need to find a new idea or to discover the next big thing: they hit the tough urban streets” (Hastreiter 1993, p.34). This quote highlights the ways in which street style is appropriated via mass fashion, and how that reinforces consumer society. This essay will use these two key theories - street style and consumer society - to critically explore the appeal of mass

are due to two factors one is the speed of the carriage and the other is the radius of the circle (how curved the track is). This acceleration is due to the unbalanced force called centripetal force (Fc=mv²/r, where Fc is centripetal force, m is mass, v is velocity and r is radius). Greater speed will result in a greater acceleration and therefore a greater net force, on the other hand smaller radius means a smaller acceleration and net force required. Both centripetal force and centripetal acceleration

Well, this is because at the very top of the loop, the acceleration is so high, it actually counters gravity and keeps the people in their seats (Why). To get through these loops the ride needs a certain speed known as the critical velocity, whose equation is v = (rg)^1/2 (Physics). That is how engineers in the modern day can test to see if a roller coaster will be able to complete its track. You will see most of you loops on the modern-day roller coasters as the older versions

Roller coasters are an exciting, popular and fun ride at amusement parks. The physics behind roller coasters are very interesting and captivating. This report will be about the energy changes involved during the ride, minimum energy required to make the ride safe but also ensuring that it is also exciting, forces involved in the ‘clothoid loop’ and the weight changes experienced by the rider during their ride through the loop. First, the roller coaster’s energy are conserved and at the start of

Aerodynamics is a branch of dynamics to the study of air movement together. It is a subfield of fluid dynamics and gas, and the term "drag" is often used to refer to the gas dynamics. The earliest records of the basic concepts of aerodynamics on the work of Aristotle and Archimedes in the third and second centuries BC, but the efforts to find a quantitative theory of airflow develop until the 18th century, beginning in 1726 was Isaac Newton as one of the first in modern aerodynamics mind when he

Paper Bullets Experiment: Data Analysis The scientific question that was investigated by the paper bullets experiment asked, “Does the width of a paper bullet affect the distance it travels when it is launched?” The hypothesis that goes along with that question is, “If a paper bullet has a larger width, then it will travel a shorter distance than a standard paper bullet with a width of 4cm.” Variables in this experiment included the independent variable (width of the starting piece of paper used

However, this excludes the mass of the vehicle itself. Thus, highway departments post road signs which stated the speed at which vehicles ought to make the turn, but these signs do not need to include particular explanations with respect to the weight of given models. REAL LIFE

distinguished scale where one would expect that typical quantum-gravity effects can never be neglected. This scale is found if one combines the gravitational constant (G), the speed of light (c), and the quantum of action (ħ) into units of length, time, mass (and energy).These are called the Plank unit.

Abstract The purpose of carrying out this experiment was to investigate the phenomenon of Newtons’s Rings, to gain a better understanding of the theory Newton developed as well as to calculate the radius of curvature of a plano-convex lens and the thickness of a section of optical fibre. The effect is named after Isaac Newton who first studied it in 1717. The pattern observed appears as a series of concentric bright and dark fringes, which has its centre at the point of contact between two surfaces

What is trampolines? A trampoline is a device consisting of a piece of taut, strong fabric stretched over a steel frame using many coiled springs. The fabric that users bounce on commonly known as the ‘bounce mat’ or ‘trampoline bed’. And is not elastic in itself; the elasticity is provided by the springs that connect it to the frame, which store potential energy. People bounce on trampolines for recreational and competitive purposes. It is said that the trampoline was first developed by an artist

Sir Isaac Newton born in January 4, 1643 and he died in March 31, 1727 was an English physicist, philosopher, inventor, alchemist and mathematician, he described the law of universal gravitation and established the bases of the Classic Mechanics by means of the laws that take its name. The other scientific discoveries that he have are the work on the nature of light and optics and the development of mathematical calculus but I’m doing this proyect for writing about the three laws of motion so I

biped robot prosthetic should be designed as a free-falling manipulator with no fixed ground. It has the Body Position Reference Generator with a position reference to the mass center of the prosthetic which is sent as input to body posture controller that determines the limbs position of the prosthetic in relation to the mass center by taking consideration of the force exerted by the body and the environment. It has a reactive force controller that regulates the amount of force created by the robot

The results of this experiment support our hypothesis that a two-foot vertical jump did indeed generate a greater amount of impulse. However, we based our hypothesis on the assumption that a one-foot vertical jump would produce a lower amount of force in comparison to a two-footed jump on the basis of muscle use. Interestingly enough, that was not exactly the case. The average amount of force produced in a two-foot jump was 777.76 N, whereas a one-foot jump actually produced an average force of

An Introduction To Forklifts About each distribution center has a forklift - an apparatus equipped for lifting a huge number of pounds. A forklift is a vehicle like a little truck that has two metal forks on the front used to lift freight. The forklift administrator drives the forklift forward until the forks push under the load, and can then lift the freight a few feet noticeable all around by working the forks. The forks, otherwise called cutting edges or tines, are typically made out of steel

4.3.8 When a ball is pitched, it stay in motion until it either fall, or is acted on by another object such as the bat, or caught by a person. The pitch and speed depends on the mass of the ball. Although it should be the same size, practicing with different balls will affect the speed. During the process of pitching, this will have a reaction on the ball causing it to move from one point to another. 4.3.9 ANGULAR MOMENTUM = MOMENT OF INERTIA X ANGULAR VELOCITY The angular velocity is the axis,

Friction is quite the perplexing element. In fact, it is one that scientists still do not fully apprehend. That is why friction experiments are being conducted so often. The information for this essay was found in the article: “Scientists Take a New Look at the Mysteries of Friction,” written by Scientific American. This essay will be discussing exactly what scientists are doing to delve deeper into the mysteries of friction. Most important, the definition of friction is force working against the

certain velocity in a certain direction, will remain this way until an outside force acts upon another object also known as inertia. The second law includes an object's movement is directly relative to the force causing it, and inversely relative to the mass of the object. Then, the third laws says that an object for every action there an equal and opposite reaction. Newton’s first law is involved in skateboarding, which states that an objects in motion will remain in motion unless acted upon by an unbalanced

Have you ever wondered how the laws of gravity effects an object? This is a question that many people may have pondered, because nothing really explains in detail about it other than elementary explanations. I like to do science experiments in school and I also enjoy history, mainly militaristic, and this is a topic that interests me to try to solve it with experimentation. I believe that learning more about Newton’s Laws of Gravity and Motion may help to explain why a trebuchets counterweight and

for investigation 3 would have all be of uniform 90 degrees, due to the curvature of the motion at the canter of mass, our angles increased with time. 4. If there were no external forces acting on the two pucks, their complex motion could be described as the combination of the uniform linear motion of the center of mass and a uniform circular motion of the pucks about the center of mass. Describe how well your results agree with this expectation, and explain any deviations that you observe from the