Essays on Physics

Classification of Vibration Vibration can be classified in several ways. Some of the important classifications are as follows. Free Vibration. If a system, after an initial disturbance, is left to vibrate on its own, the ensuing vibration is known as free vibration. No external force …

Newey and Weaver described nucleation as a process that must occur in a system, undergoing a phase transition, before the formation of another phase (Royce). This process is called homogeneous nucleation if it occurs away from any boundaries. On the other hand, heterogeneous nucleation takes …

Pin hole camera was invented by a Muslim scientist ibn-al-haitham. An Egyptian polymath (born in Iraq) whose research in geometry and optics was influential into the 17th century; established experiments as the norm of proof in physics (died in 1040). Another inventor is the tenth …

Physics – the study of matter, energy and their interactions – is an international enterprise, which plays a key role in the future progress of humankind. The support of physics education and research in all countries is important because: physics is and exciting intellectual adventure …

Calculating Tank Volume Saving time, increasing accuracy By Dan Jones, Ph. D. , P. E. C alculating fluid volume in a horizontal or vertical cylindrical or elliptical tank can be complicated, depending on fluid height and the shape of the heads (ends) of a horizontal …

Statement of Purpose “Physicists come and go but the problem of turbulence remains. ” ———- A. Liebchaber Career plans and long-term goals… The “teraflops” supercomputers will become common over the next decade and with the advent of a new era in the world of parallel …

Let There Be Light Lamp Shade Company serves an upscale local market and is currently placing a bid for several public buildings in Asia. A total of 5,400 identical lights will be installed and delivered to the foreign port where the buyer would take possession. …

The Biological Importance of Water for Living Organisms Water is made up of two elements, 2 positively charged hydrogen molecules and one negatively charged oxygen molecule. Water molecules have uneven charge distribution as one end of the molecule is slightly positive and the other slightly …

Opportunity analysis and critical issues hidden in this case As the increasing pace of globalization, more and more companies seek opportunities to involve in the international trade. Expanding the market share and maximize the profits is the purpose of those companies. However, it is unlike …

How does the atmosphere affect conditions on Earth? What is Earth’s atmosphere composed of? How do pressure and density vary with altitude? What are the characteristics of the major layers of the atmosphere? Important Terms atmosphere alarm pressure barometer troposphere weather stratosphere ozone layer mesosphere …

Abstract: In this experiment we were provided a cereal box spectrometer to observe the emission lines of noble gases and hydrogen. Based on the scale readings on the spectrometer and the Balmer-Rydberg formula, their wavelengths and percent error were able to be extrapolated. Based on …

Abstract This was an investigation into the effects of different wavelengths of light on methylene blue and carmine red on the absorbance value on a spectrophotometer. A spectrophotometer is used to measure light intensity by emitting a single light source through a cuvette of coloured …

The hypothesis about the heat death of the universe Our knowledge of the universe is still negligible, and we can not confidently assert that the universe is not under the influence of external forces, or may be considered as a thermodynamic system. However, it is …

Abstract—Decoherence is considered as one of the important topics in quantum computing research area. Some researchers stated that decoherence solved the measurement problem and on the other hand many researchers stated the opposite. In this paper we will prove whether decoherence is a solution or …

The World in Rizal’s Time Political Changes Alferez, Alain Jared Aquino, Angelica Atienza, Aldrin Baluyot, Rencie Bernabe, Venzerie Rose Lomibao, Justine 2CA1 1801 The Act of Union, a legislative agreement which united Ireland and Great Britain (England and Scotland) was enacted on January 1, 1801. …

The solar bottle bulb is taking the developing world by storm bringing sustainable, affordable lighting to the underprivileged rural communities in a number of regions around the globe, the concept is cheap, simple and most importantly sustainable, but how did such an amazing idea come …

Black hole in astronomy is a theoretical region in space with such intense gravitational forces that nothing, not even light, can escape from it. Calculations based on Einstein’s general theory of relativity published in 1915 indicate that a very high concentration of matter can form …

Lab Report Objectives: This laboratory experiment presents the opportunity to study motion in two dimensions, projectile motion, which can be described as accelerated motion in the vertical direction and uniform motion in the horizontal direction. Procedures and Apparatus: Obtain all the apparatus and material needed …

I. What is Calculus? Calculus is the branch of mathematics that deals with the finding and properties of derivatives and integrals of functions, by methods originally based on the summation of infinitesimal differences. a. Differential Calculus – concerned with the determination, properties, and application of …

Impact Of a Jet Introduction: Over the years, engineers have found many ways to utilize the force that can be imparted by a jet of fluid on a surface diverting the flow. For example, the pelt on wheel has been used to make flour. Furthermore, …

Abstract: This two part experiment is designed to determine the rate law of the following reaction, 2I-(aq) + H2O2(aq) + 2H+I2(aq) + 2H2O(L), and to then determine if a change in temperature has an effect on that rate of this reaction. It was found that …

Conflict theory is based on the idea that the main causes of crime and deviance are the economic and social differences among members of a society, prompting the have-nots to act out, if not to rob the haves. According to this theory, criminal law and …

The Future Smart House is going to have a large number of sensors and microelectronic devices located throughout the house. These devices will need a clean, reliable source of energy that won’t need constant maintenance. The goal of this report is to get awareness about …

From many experiments, Thomson had certified that cathode rays carry negative charge and identified the cathode rays inside vacuum tubes as being electric currents composed of these tiny electrons (Hamblin, 2005). It was the crucial first step in the development of the twentieth-century concept of …

Everything is made up of tiny particles called atoms. The atoms are made up of even smaller parts called protons, electrons and neutrons. Protons have a positive charge (+), electrons have a negative charge (-) and neutrons have no charge at all, they are neutral. …

Tara and Bim attempt to reconcile their childhood dreams with their adult lives and work to resolve the lingering guilt of past family conflicts. When Tara returns for a visit with Bimla and Baba, old memories and tensions resurface and blend into a domestic drama …

Objective The objective of this experiment is to examine the simple harmonic motion and to determine the value of the acceleration due to gravity from the analysis of the period of the simple pendulum. [1] Background There are three equations that will be used to …

Antoine Lavoisier was born in the year 1743 to a wealthy family and inherited a huge fortune at the age of five after the demise of his mother. A noble man by profession has contributed a lot in both chemical and biological science. Antoine Lavoisier …

Introduction This report considers why the uneven distribution of land and oceans across the Earth affects climate and vegetation both at global and regional scales. It also looks at atmospheric and ocean circulation. Because Earth is always at a tilt, there is an uneven latitudinal …

Question Bank In Mathematics Class X (Term–II) 13 SURFACE AREAS AND VOLUMES A. SUMMATIVE ASSESSMENT (c) Length of diagonal = TH G (a) Lateral surface area = 4l2 (b) Total surface area = 6l2 (c) Length of diagonal = 3 l 3. Cylinder : For …