Getting cats out of trees remains a simple task for firefighters compared to what will be discussed today. The fire service industry faces multiple challenges from day to day and from call to call. Firefighting remains a great deal more than hanging out and resting at the firehouse. Firefighting has a broad spectrum‚ for example‚ responding to motor vehicle incidents all the way to responding to large gasoline truck fires. In the scenario I will to provide‚ in greater detail‚ when it comes to
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Physics Exam Study Notes By: Faizan Dhalla | SPH3U 1: Forces and Motion * Kinematics: study of motion * Basic types of motion: * Uniform (constant speed in straight line) * Non-uniform * Scalar quantity: with magnitude & no direction * Distance‚ average speed * Vector quantity: with magnitude (arrow above it) & direction (in square brackets after unit) * Position‚ displacement‚ acceleration * Velocity: * Rate of change of position *
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any compound. It is this span of temperature that mirrors the range of where life can exist‚ from bacteria to humans. Water also has a very high specific heat‚ which means that it can absorb or lose much heat before its temperature changes. This is important in maintaining body heat in mammals. It also takes a lot of energy before vaporization can occur. For this reason‚ water evaporates slowly from ponds and lakes‚ where many life forms are dependent on a stable‚ warm environment. Water is less
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CHAPTER 1 EVOLUTION- the process of change that has transformed life on Earth BIOLOGY- scientific study of life EMERGENT PROPERTIES- result from the arrangement and interaction of parts within a system SYSTEMS BIOLOGY- constructs models for the dynamic behavior of whole biological systems EUKARYOTIC CELL- has membrane enclosed organelles‚ the largest of which is usually the nucleus PROKARYOTIC CELL- simpler and smaller‚ does not contain nucleus or other membrane enclosed organelles DNA- (Deoxyribonucleic
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when we heat a sample of ice that is initially at -15°C? The addition of heat causes the temperature of the ice to increase. As long as the temperature is below 0°C‚ the sample remains frozen. When the temperature reaches 0°C (the melting point of water)‚ the ice begins to melt. Because melting is an endothermic process‚ the heat we add at 0°C is used to convert ice to water and the temperature remains constant until all the ice has melted. Once we reach this point‚ any further addition of heat causes
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| See Concept 2.2: Atoms Interact and Form Molecules | Points Earned: | 0/1 | Correct Answer: | C | Your Response: | A | 2. | Which of the following statements about water is true? | | A. | Water has a low heat of vaporization. | B. | Water has a high specific heat. | C. | When water freezes‚ it gains energy from the environment. | D. | All of the above | E. | None of the above | | See Concept 2.2: Atoms Interact and Form Molecules | Points Earned: | 1/1 | Correct Answer:
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I. Introduction Fractional distillation is the separation of a mixture into its fractional parts that entails many concurrent vaporization-condensation cycles. This works because of different boiling points of individual substances. The temperature of the fractional distillation column decreases as its length increases. A higher boiling point component condenses on the column and returns to the solution whereas the lower boiling point component passes through the column and is collected in a receiver
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previously stated city of Kokura. At the time of 10:58 a.m.‚ the bomb “Fat man” was dropped over the city of Nagasaki‚ and exploded 1‚800-1‚900 feet above the city‚ killing between 60‚000 – 80‚000 people instantly‚ whether by immediate vaporization due to the immense heat‚ by the shockwave destroying homes and crushing factories‚ or being crushed by the subsequent debris following. After the immediate death toll of the bomb‚ a total death toll reached almost 105‚000 due to radiation poisoning and
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liquid‚ in which we also discuss the factors which affect the rate of liquid. Introduction When liquid is placed in an open vessel. It slowly escapes into gaseous phase ventually leaving the vessel empty. This phenomenon is known as vaporization or evaporation. Evaporation of liquids can be explained in the terms of kinetic molecular model although there are strong molecular attractive forces which hold molecules together. The molecules having sufficient kinetic energy can escape into
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DMITRI MENDELEEV Dmitri Mendeleev (1834-1907)‚ a Russian chemist‚ was born in Siberia‚ where after he attended the gynasium of his native palce‚ he went to study natural science at St. Petersburg‚ where he graduated in chemistry in 1856. In 1860 he went to Heidelberg‚ where he started a laboratory of his own‚ but returned to St.Petersburg‚ where he was appointed to a professorship and in 1866 succeeded to the Chair in the University. Mendeleev is known for revolutionizing our understanding of
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