Date of Experiment October 7‚ 2012 Report Submitted: October 7‚ 2012 Title: Liquids and Solids Purpose: The purpose of this experiment is to determine the boiling point of liquids and the melting point of solids. Procedure: I got all of my materials together and set up. I poured rubbing alcohol in a beaker and rubber banded it with the thermometer. I logged the last bubble that came out of the capillary tubes. After that I crushed the acetamide and carefully put it in the capillary tube
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Tutorial 1: Atomic Structure and Bonding in Solids 1. (a) Cite the difference between atomic mass and atomic weight. (b) Silicon has three naturally-occurring isotopes as shown in the table below. On the basis of this data‚ confirm that the average atomic weight of Si is 28.0854 amu. |Silicon Isotope |Natural Abundance |Atomic mass of | | | |isotope (amu) | |28Si |92.23 % |27.9769 | |29Si
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F=20 kN‚ and AAB=ACD=1000 mm²? a) b) c) d) e) 20 N/mm² 10 N/mm² 10 kPa 200 kN/m² 20 MPa Copyright © 2011 Pearson Education South Asia Pte Ltd READING QUIZ (cont) 3. The center portion of the rubber balloon has a diameter of d = 100 mm. If the air pressure within it causes the balloon’s diameter to become d = 125 mm‚ determine the average normal strain in the rubber. a) b) c) d) 0.2 0.25 π 0.25 1.25 Copyright © 2011 Pearson Education South Asia Pte Ltd READING QUIZ (cont) 4. What is
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The Snow It Melts The Soonest - A portrayal of love ”The snow it melts the soonest when the winds begin to sing And the corn it ripens faster as the frosts are setting-in And when a young man tells me that my face he’ll soon forget‚ before we part he’ll tell me that he’d be fain to follow it yet The snow it melts the soonest when the winds begin to sing And the swallow flies without a thought long as it is spring But when spring goes and winter blows my love still firm will be I know
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02TTB204 Mechanics of Solids Part B Lab Buckling of Struts 1. Introduction The task was given to obtain the buckling stresses for pin-ended steel struts of various slenderness ratios and compare with theoretical predictions obtained using the Euler and Rankine-Gordon equations. 2. Theory The method of obtaining the buckling stresses followed was to use data show in Appendix A. From the record of applied load‚ P‚ against deflection‚ δ‚ a Southwell plot of δ against
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does not significantly change the original geometry of the member The Poisson’s ratio v ≤ 0.45 Young’s Modulus is small a‚ b and c a‚ b and d a and b only All Copyright © 2011 Pearson Education South Asia Pte Ltd READING QUIZ (cont) 3) The units of linear coefficient of thermal expansion are a) b) c) d) per ° C per ° F per ° K (Kelvin) all of them Copyright © 2011 Pearson Education South Asia Pte Ltd READING QUIZ (cont) 4) Stress concentrations become important in design if a) b) c)
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COMPRESSION TEST Copyright © 2011 Pearson Education South Asia Pte Ltd READING QUIZ 1) The modulus of elasticity E is a measure of the linear relationship between stress and strain. The common unit is: a) kN/mm2 b) c) MPa GPa d) All of them Copyright © 2011 Pearson Education South Asia Pte Ltd READING QUIZ (cont) 2) The Poisson’s ratio‚ v of common engineering materials lies in the range: a) b) c) d) 0≤v≤1 0 ≤ v ≤ 0.5 -1 ≤ v ≤ 1 -0.5 ≤ v ≤ 0.5 Copyright © 2011 Pearson
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1.) the diagonal of a rectangle is 25 meters long and makes an angle of 36 degree with one side of the rectangle. Find the area and the perimeter of the rectangle. 2.) A side of a square is 16 inches. The midpoints of its sides are joined to form an inscribed square. Another is drawn in such a way that its vertices would lie also at the midpoints of the sides of the second square. This process is continued infinitely. Find the sum of the areas of these infinite squares. 3.) A rectangle and a
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What Interaction Of Outside Influence Makes Ice Melt Fastest? A. Explain the significance of the given factors in your project design plan: • Problem statement • Relevance of your testable question Problem Statement: I have lived in a place that during the winter‚ ice would form on the streets and sidewalks and have wondered why things such as salt or sand are used over other methods to help de-ice the surfaces? Why is salt or sand the most commonly used substances when addressing this issue
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Lab 3 – Separation of a Mixture of Solids Cathy Lab Partners: Chelsea Brooke Sept 4‚ 2012 Chemistry 131A Dr. Vicki H Audia Pelab Questions: Proposed procedure for separation of a mixture: Use physical properties of the 4 substances to separate. 1. Remove iron with magnet 2. Add water to the mixture to melt the benzoic acid and NaCl then filter out sand. 3. Chill the solution and scoop the acid out leaving a salt solution. 4. Boil water away leaving salt. Purpose: The
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