k called the “spring constant” is the variable we are trying to find as well is the total of the stress made on the object. Stress is the force on unit areas in a material that develops a result in externally applied force. The reason why k must be multiplied by two is because modern versions of the slingshot are designed to have a Y-shaped handle with two rubber straps and a pouch attached to the points. Since I pull the rubber band back to increase its displacement both individual strand is parallel producing the same spring constant. F would be measured the same since it would be calculated from both spring constants.
Upon the removal of the load or force, an object would return to its original size and shape. Mathematically, this can be expressed as F=kx, where F is the deforming force, x is the size of the deformation, and k is the spring constant. In this experiment, the spring constant of the plunger can be determined by applying force on the spring and recording the displacement of the spring plunger. When the force is plotted versus displacement, the slope of the resulting straight line is equal to the spring constant, k. To get the spring potential energy, the formula PEspring = ½ kx2. 2.
MR fluids require small voltages and current, while ER fluids require very large voltage and very small currents. According to the experts, MR fluids have become a widely studied “smart” fluid due to its less consumption of energy. The fluid that is transferring from top to bottom or from bottom to top must pass through the MR valve. The MR valve is fixed size orifice with ability to apply a magnetic field to the orifice volume. This magnetic field changes the viscosity of MR fluid, which will cause change in flow rate.
INTRODUCTION. Newton developed this law of motion has significant mathematical and physical elucidation that are needed to understand the motion of objects in our universe. Newton introduced the three laws in his book Philosophiae naturalis principia mathematica (Mathematical Principles of Natural Philosophy), which is generally referred to as the Principia. He also introduced his theory of universal gravitation, thus laying down the entire foundation of classical mechanics in one volume in 1687. These laws define the motion changes, specifically the way in which those changes in motion are related to force and mass.
In addition, Poly (ether sulphone) is stable in oxidizing agents and various non-polar solvents. However, it does react with low-polarity organic solvents like chlorinated/aromatic hydrocarbons and ketones like methylpyrrolidone. Due to its stiff and yet comparatively flexible structure, it relatively maintains its mechanical and chemical properties from -100 oC to 200 oC. Poly (ether sulphone) is highly resistant to mechanical deformation including complex forces at high temperatures under continuous loading as well as creep deformation under temperatures upto 150 oC. Hence it is resistant to hydrolysis despite being used continuously in steam and boiling
The speed of any wave depends upon the properties of the medium through which the wave is traveling. Typically there are two essential types of properties that affect wave speed - inertial properties and elastic properties. Elastic properties are those properties related to the tendency of a material to maintain its shape and not deform whenever a force or stress is applied to it. A material such as steel will experience a very small deformation of shape (and dimension) when a stress is applied to it. Steel is a rigid material with a high elasticity.
The H-shaped beams will be more preferable in this case since; the beams will be able to with stand the shear forces and stress exerted by bending and through shear loads. Due to its shape, it is able to provide efficient support at the top and at the bottom. Its however disadvantaged in that, it is not efficient in carrying torsion as there is preference of hollow structures in this case. The beams are made of steel, which is the most ideal material for use. The load exerted on the beams will be caused by; the load from the self weight caused by the deck, loads resulted to by the live loads, weight exerted due to car skidding as well as effect of braking and horizontal loads as a result of temperature and movements such as wind.
Fair Testing: This experiment will be a fair test as we will control our control variable at our best of our ability. The experiment will be fair as the mass inside the tub will remain the same throughout the whole experiment. This is because if the mass changes, there will be a larger amount of gravitational force acting on the tub which will affect the displacement of the tub. Furthermore, the surface that the tub will be travelling on will remain the same throughout the whole experiment as changing the surfaces will affect the results due to friction, some surfaces may have more friction than others, which is why we will be using the same surface every time we conduct a trial to prevent errors. In addition, the elastic band will also remain the same throughout the experiment as different elastic bands have different lengths and elastic power and if we change the elastic band every time, it may affect the displacement of the tub.
A solenoid is just a coil of wire, but when you run a current through it, you create an electromagnet. Electromagnets are particularly useful because, unlike regular magnets, they can be switched on and off, and strengthened by increasing the current flowing through them. When you run a current through a solenoid, you get a supper strong magnet because the magnetic field is concentrated inside the coil. Electromagnetic solenoids find uses all over the world. They’re in hotel door locks, water-pressure valves, MRI machines, hard disk drives, speakers, cars, and
The test is based on the principle that the rebound of an elastic mass depends on the hardness of the surface against which the mass impinges. Fig. 8.2 shows the rebound hammer. The spring controlled hammer mass slides on a plunger within a tubular casing. The plunger retracts against a spring when pressed against the concrete surface, and this spring is automatically released when fully tensioned, causing the hammer mass to impact against the concrete through the plunger.