Intermolecular force

Imagine that you are in a world where you can control everything. Flying, apparition, transforming into any form, deciding what happen next, massacre or resurrecting, all these things can be done simply by idiodynamics . Is it a world far from reality? In fact, some people could spend nearly one third of a day in such a world which is called lucid dreams. In a lucid dream, dreamers are aware that they are dreaming and then, if they are skilled enough, control the dream. Lucid dream is a vital…

2.9 Material Properties 2.9.1 Hardness Test Hardness is defined as a measure of a material’s resistance to contained plastic deformation (e.g., a small dent or scratch). Hardness testing comprises a small indenter being enforced into the surface of the material being confirmed under organized circumstances of load and rate of application. The depth or size of the resulting indentation is measured, which in turn is linked to a hardness number; weaker the material, indentation will be the…

the period T, is given by: Ѡ =2πf = 2π/T … Equation [2] The expression for the period in terms of k and m is obtained by combining the two equations as shown in Equation [3]: T = 2π √(m/k) … Equation [3] Pendulum: The restoring force in an oscilating Pendulum does not obey Hooke’s Law. F = -mgsinɵ … Equation [4] For the case of a small angle, small angle approximation can be used : sin ɵ ≍ ɵ, In effect, the equation will obey Hooke’s Law as shown in Equation [5]…

All fluids have its resistance to relative motion between surfaces and is called Viscosity. This property is about the friction between the particles of a fluid. A fluid that is forced in a tube has the liquid moving faster as it is closer the axis of the tube and slower when farther from it. 3.1.1 Dimensionless Parameters In analysis of convection heat transfer, it is convenient to convert to non-dimensional the governing equations and combine the variables, which makes the group of…

Introduction and Overview: For this extended essay, I will be working on building and optimizing different sized water rockets to find out the optimum amount of fuel (water) for each the different rocket sizes. I will be measuring the ranges at which each rocket will fly to find out the optimum fuel level. A brief summary of water rockets: A water rocket is made up of a selection of parts to provide its successful launch: the nose cone which will make the rather snub-nosed end of the large…

LINEAR WAVE THEORY Linear wave theory can be defined as first-order, small amplitude gravity wave with a sinusoidal shape. This theory has been developed by Airy in 1845. It is easy to apply and give reasonable approximation of wave characteristic for a wide range of wave parameters. However, in some situations, waves are better described by higher order theories or also referred as finite-amplitude wave theories. Although there are limitations to its application, linear theory is still useful…

a) According to the right-hand rule, the direction of the magnetic fields of the 3 wires are shown: We find the magnetic fields B1, B2 and B3: 퐵1=퐵2= 푢0 푖 = 푢0 푖 = 4∗3.14×10−7 ∗(3.65) =ퟒퟐ.ퟔퟔퟎ풖푻 2휋푟 2휋( 2푎) 2 ∗ 3.14 ∗( 2(0.0121)) 퐵3= 푢0 푖 = 푢0 푖 = 4∗3.14×10−7 ∗(3.65) =ퟐퟎ.ퟏퟏퟎ풖푻 2휋푟 2휋(3푎) 2 ∗ 3.14 ∗(3∗(0.0121)) The x components of the B1 and B2 cancel each other; therefore the net magnetic field will be downward and we have (the negative sign is because the direction is downward): 퐵=− 퐵1cos 45 +…

Could You…? Math Inquiry Pietro Could you run 0.8 kilometres in one minute? The fastest 100m sprint speed record is held by Usain Bolt , reaching the speed of 43.94 kph. 0.8 km is 800 meters. For you to run 800 meters in 1 minute you would need to reach the speed of Usain bolt speed: 43.94 x 800m= 35152 m/s. Though human endurance comes into play as well, as a person cannot run their top speed for more than 8 seconds. Usain Bolt was able to keep 95% of his top speed for 8 seconds during his…

Introduction This practical was an investigation involving the use of a tennis ball and a meter ruler. The tennis ball was held and dropped at a specific height above the ground. The height of the bounce was then measured. This investigation was carried out to find out whether the efficiency of the bounce varied with the height of release of the tennis ball. If the bounce were 100% efficient, then the tennis ball would have bounce off the ground and return to the starting height. Research…

Wire Rope Wire Rope Definition and Types Wire rope is machine composed of individual wires that have been twisted to form strands and work together to achieve optimum results for the selected operation. Strands are then twisted, to form a wire rope. The parts of a wire rope illustrated in the figure below. The core is the foundation of the rope design. The main functionality of the core is to support the wire stands and maintain them in their position during the lifecycle of the product…