LEADS College Defense Road Campus Time Allowed: 3 hours Paper A Max.Marks:50 Attempt any FIVE questions in all‚ selecting at least TWO questions from each section. All questions carry equal marks (Section -1) 1(a) what is meant by divergence of the vector field? Show that ������ �� = ��. �� where V is a vector field in three dimension ? (5) 1b) if ��(��‚ ��‚ ��) = 3�� 2 + 4�� 3 + �� 2 is a scalar field find the �������� ���� �� at point (1‚-2‚ 3)? (5) 2(a) Define elastic and inelastic collisions
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Midterm Exam II Solution‚ ME 342 Fluid Mechanics (Spring 2013) 1. Consider a steady‚ incompressible‚ y=+h b viscous flow of viscosity due to y a pressure gradient x inside a channel of two fixed u=u(y) plates at a distance of 2h‚ as shown in the figure. Neglect a gravity effect. The channel width y=h b is W and it is very long compared to the channel length L (i.e.‚ W>>L) so that it is still valid to assume that the channel flow is a two-dimensional plane flow ( ) and an axial flow (v = w = 0)
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I.Cerebrospinal Fluid Cerebrospinal fluid is a clear‚ colorless liquid produced within spaces called ventricles in the brain. It is also found inside the subarachnoid space of the meninges which surrounds both the brain and the spinal chord. It bathes the exposed surfaces of the central nervous system‚ and completely surrounds the brain and spinal cord. In addition‚ a space inside the spinal chord called the central canal also contains cerebrospinal fluid. CFS acts as a cushion for the neuraxis
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Quantum Mechanics Notes Matter can be understood by applying two scientific models: particles‚ and waves Particle Models Particles are objects that are hard‚ have mass‚ and move according to Newtonian mechanics. Particles are a macroscopsic model which can be applied to the microscopic world. Kinetic model of a gas: gas molecules are small‚ hard particles bouncing off of one another and the walls of their container. Macroscopic phenomena of pressure and volume are explained in terms of masses
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Coolant and cutting fluid management Contamination of coolants and loss of cutting fluid through chip waste is one of the most time consuming and costly situations for a company. That is where fluid management comes into play. There are many ways to fight contamination and fluid loss. Loss of cutting fluid and coolants through chip waste can be solved with a briquetter. A briquetter is a machine that compresses your chips and turnings into a briquette squeezing out ninety percent of your expensive
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IP Proposal I. Title- Correction fluid from chalk II. Problem -how to make correction fluid from chalk dust safer? a.) Hypothesis - If this correction fluid won’t have any solvents/chemicals‚ then it won’t be harmful to the nose/body. b.) Objectives of the study -the objective is to create a safer correction fluid‚ to avoid it from being an inhalant. c.) Significance of the study -the significance of the study is to reduce the solvents and other chemicals that are harmful to the body when
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Absolute entropy is entropy calculated relative to the absolute reference point determined by the third law of thermodynamics. Absolute humidity (specific humidity or humidity ratio) is the mass of water vapor present in a unit mass of dry air; that is‚ it is the ratio of the mass of water vapor to the mass of dry air in atmospheric air. Absolute pressure is the actual pressure at a given position and it is measured relative to absolute vacuum (i.e.‚ absolute zero pressure). Throughout this
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of air and other gaseous fluids and with the forces acting on bodies in motion relative to such fluids http://www.merriam-webster.com/dictionary/aerodynamics Other: aerios‚ concerning the air‚ and dynamis‚ which means force. http://www.grc.nasa.gov/WWW/K-12/airplane/bga.html Bernoulli’s Principle: • The relationship between the velocity and pressure exerted by a moving liquid • States that for an inviscid flow‚ an increase in the speed of the fluid occurs simultaneously with
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Luis Alvarez Mechanic Job Shadow Questions 1. What does a person typically do in this occupation? A mechanic typically does an oil change‚ rebuilding engines‚ air conditioning work‚ work on transmission‚ and paperwork. 2. Describe the working conditions (include conditions such as dusty‚ noisy‚ hot‚ cold‚ inside‚ outside‚ people-oriented‚ paperwork oriented‚ co-workers‚ etc.) A mechanic works both inside and outside. When it cold the tools are cold. It is also noisy. 3. What special skills (e
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100 321.9 4.5 1.0 50 100 490.6 5.0 1.0 50 100 Post-lab Quiz Results You scored 100% by answering 4 out of 4 questions correctly. 1. The variable that you altered in this activity wasYou correctly answered: c. vessel radius. 2. Vessel radius and fluid flow You correctly answered: b. are directly proportional. 3. After a heavy meal‚ when we are relatively inactive‚ we might expect blood vessels in the
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