Armed forces

oppose force acts against to its motion is called friction force as shown in fig.1.7. The friction is not a property of material, but it is a system response. The ratio of…

Rosseland Radiation Model The Rosseland Model (Diffusion approximation model) is applicable when the medium is optically thick i.e. the optical thickness is much greater than 1 where a is the absorption coefficient of the medium, σ is the scattering coefficient of the medium and L is the average path length. The radiative heat flux is approximated as [3], (2.13) where qr is the radiative heat flux, Γ is the radiative diffusivity and G is the incident radiation. In contrast to the P-1 model…

aerofoil? Aerofoil is a large stucture which is attached to the airplane. It has curved surfaces designed to give required ratio of lift and drag. It helps to create different aeodynamic forces. The force perpendicular to the motion of aeofoil is lift force. The force parallel to the motion of aerofoil is drag force. 1.2 How it works? Aerofoil consists of following components: • Suction surface • Pressure surface • Leading edge • Tailing edge • Chord line Figure 1 Profile of Aerofoil…

is as rest it remains at rest or, if it is in motion, it moves with uniform velocity, until it is acted on by a resultant force. 2. Acceleration is dependent on the forces acting upon an object and the mass of the object. Therefore, if the force is increased, the acceleration is increased. And the more mass the object has, the more acceleration decreases. So the resultant force (F) is equal to mass (m) times acceleration (a) (F = ma). 3. For every action, there is an equal and opposite…

directional deformation, equivalent elastic strain, equivalent stress, maximum principal stress and strain energy. They are affecting the performance of the diaphragm spring clutch. The aim of this study is to define the change of the maximum reaction force related to diaphragm spring thickness and upper side support point location. While FEM solution is preparing, Ansys and Cre-o program work and communicate each other. Diaphragm spring…

Introduction Variables exist in experiments and can be linked together in the form of an equation. Some equations have constants that link the variables together in a sort of relationship. Gravity is considered a constant in many formulae including equations of kinematics and projectiles. In this experiment, the simple pendulum apparatus can be used investigate the relationship between the time period and the length of the pendulum, with a constant value including the value of gravity. This is…

all the particles of a rigid body move along paths which are equidistant from fixed plane. 2 A force does work when it undergoes a displacement along its line of action. A force does work when it undergoes a displacement ds in the direction of the force. 3 Work and energy are scalar quantity For example : A force F does work on a particle when it undergoes a displacement in the direction of the force The displacement is dr = r’ – r The angle between tails of dr and F is θ and work dU…

Vertical dimension (VD) defined in the Glossary of Prosthodontic Terms as "The distance between two selected anatomic or marked points”. Occlusal vertical dimension (OVD) defined as "The distance between two selected anatomic points when in maximal inter-cuspal position”.(1) The OVD is determined by the repetitive contracted length of the elevator muscles which sets the jaw-to-jaw relationship.(2) During growth and development OVD affected by three factors: Growth of the ramus, gonial angle of…

laws are here to understand why and what happens when using forces. Newton's laws have everything to do with forces and motion. There are three laws; the first being every object in a state of uniform motion tends to remain in that state of motion unless an external force is applied to it. The second is the relationship between an object's mass m, its acceleration a, and the applied force F is F = ma in this law the direction of the force vector is the same as the direction of the acceleration…

all of the roller coasters without ever giving any thought to the physics behind the ride. There are several components of physics which contribute to the thrill of roller coasters, including gravitational forces, the law of conservation of energy, friction, centripetal force, and normal force, just to name a few. Gravity, the law of conservation of energy, and friction all play major roles in the functionality of roller coasters. A roller coaster ride typically begins with an ascent, powered…