frictionless and a 100% efficient IMA= De/Dr Actual Mechanical Advantage (AMA)- It is pretty much the opposite of IMA meaning it is not 100% efficient and it has friction. AMA= Fr/Fe Efficiency- The amount of work put into a machine compared to how much useful work is put out by the machine; always between 0% and 100%. Friction- The force that resist motion between two surfaces that are touching each other. What do we use machines for? Machines are used for many things. Machines are used
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turns‚ and kicks‚ dance is a representation of physics at its best and most elegant. Two dance moves in particular come to mind when I think of physics and its effects on dance. They are the grand jeté & projectile motion‚ and the glissade and friction. Grand jeté literally means big jump. It is a long horizontal jump‚ starting from one leg and landing on the other. It also appears as a split in the air. The goal of this move is to create an illusion to the audience that the dancer is floating through the air and also
Free Force Classical mechanics
1 LIST OF SYMBOLS Symbol Description Unit T Temperature K ΔP Pressure Drop Pa ρ Density kg/m3 µ Kinematic Viscosity N*s/m2 V Bulk Velocity m/s D Diameter m A Area m2 Flow Rate m3/s Re Reynolds Number - f Friction Factor - L Length m 2 CALCULATIONS For the sample calculations‚ we looked at the first sample point of the flow in Pipe 1‚ the smallest diameter smooth copper tube: The first step in determining the properties of
Free Fluid dynamics Reynolds number Viscosity
ceramic composite brake discs like; better performance‚ better road-holding under braking‚ acceleration and cornering‚ greater comfort on poor road surfaces‚ improvement in agility and handling‚ exceptional fade resistance thanks to consistently high friction values‚ more immediate and precise response‚ generous safety reserves‚ even in competition use‚ resistance to expansion or warping‚ virtually no susceptibility to corrosion‚ low service and maintenance costs‚ excellent sound-damping properties and
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is an impression left by the friction ridges of a human finger. In a wider use of the term‚ fingerprints are the traces of an impression from the friction ridges of any part of a human or other primate hand. A print from the foot can also leave an impression of friction ridges. A friction ridge is a raised portion of the epidermis on the digits (fingers and toes)‚ the palm of the hand or the sole of the foot‚ consisting of one or more connected ridge units of friction ridge skin. These are sometimes
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motion. As a result‚ we found that the physical stress tended to decline with the decrease of virtual inertia and virtual Coulomb friction‚ and to increase slightly with the decrease of virtual gravitational moment. The decrease of virtual viscous friction made the physical stress increase gradually after it declined to a trough during the positive virtual viscous friction. Based on the results‚ we could establish the criteria for adjusting the virtual impedance for minimizing the operator’s physical
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Forensic Fingerprint Analysis Professor Patrick Morley Part 1 Based upon your expertise in regards to fingerprint and friction-skin development‚ explain why the following conclusion regarding human cloning is false. Premise: The proven fact that identical twins do not have the same fingerprints has been accepted. However‚ human clones present a different set of friction skin development issues. Conclusion: The clone‚ being directly derived from the host‚ would indeed have the same fingerprints
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we have been learning about are the forms of energy. There are many forms of energy. The forms of energy I saw in Home Alone are‚ electrical‚ thermal‚ and mechanical. I also found a couple more things in the movie but they are not forms of energy. Friction and fluids are some more things that we have been talking about in class that I I had found. In the movie Home Alone they use different forms of energy. One of the things that happens is electrical energy. The electrical energy happens when Kevin’s
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and kinetic energy‚ which is generated by the actual movement of water as it travels down slope. Many factors influence how much energy a river has and therefore how much work it can do. A river uses most of its energy (95% in fact!) overcoming friction with its bed and banks in particular large rocks and boulders. The river has to use energy to flow over these obstacles and therefore does not use it to do work. Type of flow is also important. In a river channel that is rough and irregular
Free Energy Potential energy Kinetic energy
------------------------------------------------- Parasitic Drag/Skin Friction ------------------------------------------------- ------------------------------------------------- Parasitic drag is drag caused by moving a solid object through a fluid medium (in the case of aerodynamics‚ more specifically‚ a gaseous medium). Parasitic drag is made up of many components‚ the most prominent being form drag.Skin friction and interference drag are also major components of parasitic drag. -------------------------------------------------
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