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Physics

Question: WHY DO PHYSICISTS THINK THAT STRING THEORY OFFERS A ROUTE TO A UNIFIED MODEL OF PHYSICS?

Answer: Abstract Our knowledge of the universe today has progressed exceptionally over the past few hundred years, even more so in the past few decades. We live in an extremely complex universe that has existed for billions of years. We cannot change the fact that the universe exists, but one cant help but wonder why it actually exists. We have been living in a world described by what is known as the Stan......(short extract) to download the full answer, please Sign in or Register then make a payment or submit an essay

Question: Investigating factors which affect the period time of a simple pendulum

Answer: In this investigation, I am going to investigate the factors that affect the period of oscillation of a simple pendulum. A simple pendulum consists of a single oscillating mass with a concentrated mass. The period of oscillation is the amount of time taken for the mass to return to its original position after it is released. A is the original position of the pendulum. As......(short extract) to download the full answer, please Sign in or Register then make a payment or submit an essay

Question: Was the scientific revolution primarily one concerned with the solar system?

Answer: In the early modern period, scientific advancements paved the way for the findings, which we now take for granted, but back then were originally seen as a far more abstract concept. This was largely due to the work of men such as Galileo Galilei (1564 – 1642), Nicolaus Copernicus (1473 – 1543), Johannes Kepler (1571 – 1630), Tycho Brahe (1564 – 1601) and Ismael Boulliau (1605 – 1694) as......(short extract) to download the full answer, please Sign in or Register then make a payment or submit an essay

Question: Estimate the minimum time for the vehicle to accelerate from rest to 90 km/hr along a level road in still air.

Answer: It was required to estimate the minimum time for the vehicle to accelerate from rest to 90 km/hr along a level road in still air. Since acceleration is not constant, the time is calculated in small intervals of 5 km/hr. As it is important to give the best performance of the vehicle, the mass of the vehicle is assumed to be the same as the one used in calculating the maximum velocity. It is al......(short extract) to download the full answer, please Sign in or Register then make a payment or submit an essay

Question: Project Report: Black Holes - Do They Exist And If So What Effect Could They Have On US?

Answer: Black Holes, a story for science fiction or is there truth behind their existence. These astrological anomalies are still a wonder to the greatest scientists in the world and not yet identified to truly exist. During this investigation I will be looking into the way in which ideas of Black Holes existence have developed over the years. Furthermore this investigation will also look into the ways in......(short extract) to download the full answer, please Sign in or Register then make a payment or submit an essay

Question: Thermodynamics and Fluid Mechanics

Answer: Abstract: This Experiment involves testing a number of orifices of varying shape to calculate the mass flow rate and the coefficients of contraction, velocity and discharge for each orifice. Four orifices were used; a rounded orifice, a parallel orifice, a divergent orifice and a convergent orifice. The first measurement taken was the amount of water that flowed through the orifice in a given time......(short extract) to download the full answer, please Sign in or Register then make a payment or submit an essay

Question: Heat transfer by convection. Aim: The aim of this investigation is to determine the effect of free and forced convection on the distribution of heat in a fluid.

Answer: Introduction Heat transfer by convection in this investigation occurs as a result of heat transferred from a solid surface to a fluid by conduction and then that heat is transferred within the fluid by the movement of exited particles. ‘It is important to note that convection requires mixings of fluid elements, and is not governed by temperature differences.’ (CRCE/Vol.1/ 2000Edt. pg381). ......(short extract) to download the full answer, please Sign in or Register then make a payment or submit an essay

Question: Discuss the roles that the protein components play in the following classes of metalloproteins:

1. Electron transfer proteins
2. Oxygen transport proteins
3. Proteins involved in light harvesting

Answer: 1 electron transfer proteins: Electron transfer reactions involves a switch in the redox states of a metal ion whether it involve Cu(I)/Cu(II), as is the case in blue copper proteins for example, or Fe(II)/Fe(III) as is the case in cytochromes or Fe-S cluster proteins. In any case the protein component of the metalloproteins plays significant roles, some of which are: 1. protection of th......(short extract) to download the full answer, please Sign in or Register then make a payment or submit an essay

Question: MEASURING SURFACE TENSION OF AQUEOUS SOLUTIONS
BY THE CAPILLARY RISE METHOD

Answer: ABSTRACT The capillary rise method was used to measure the surface tension of aqueous solutions of sodium chloride and acetic acid. Molar concentrations of 0.5 M and 1.0 M for each solution were tested. The results were then compared to the surface tension of pure water to observe how solute properties affect the surface tension of water. The experimental results showed that adding acetic acid s......(short extract) to download the full answer, please Sign in or Register then make a payment or submit an essay

Question: Report title: The Anomalies of Water

Answer: Water is the third most common molecule in the universe (after H2 and CO), the most abundant substance on earth and the only naturally occurring inorganic liquid and many believe that it is a typical liquid, one with the same properties as any other liquid. It can easily be said that it is the most important on Earth but this does not over-rule the fact that it is a liquid with many anomalies. At ......(short extract) to download the full answer, please Sign in or Register then make a payment or submit an essay

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