Swell Reports Samples For Students

Abstract

This report acknowledges the various properties associated with plastics and their behaviour when subjected to different conditions of loading. This experiment investigates the mechanical behaviour of five types of polymers which include Silly putty, six pack rings, nylon cable ties, Ply Doh, and Splat Ball. The properties of plastics can be altered to introduce cross-links and thereby introducing constraints to prevent sliding or rotation. The findings of the experiment concluded that temperatures, speed of loading and chemical composition of plastics are determinants of their mechanical behaviours.

Introduction

Polymers play a critical part in day-to-day life as manifested in the numerous applications. ...

Final Exam Geology

Patterns of Surface Ocean Currents

Surface currents are found in the upper four hundred meters of an ocean body and they form major patterns such as eddies, upwelling, and gyres (Garrishon, 2007). Surface currents result from wind energy that is concentrated in both north and south hemispheres forming trade winds which are easterlies and westerlies (Garrishon, 2007). Waves on the sea surface transfer some of the energy from the moving air to the water by friction. Pulling of wind on the surface of ocean causes an accumulation of water with the water displaced underneath the wind forming the movement.
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The solution A contained polysaccharides and monosaccharide at the beginning of the experiment. At the end of the experiment, the cell contained the same contents, both monosaccharide and polysaccharides. However, the cell was rigid due to movement of water molecules from the solution in the beaker through the cell membrane of the dialysis tube to the solution inside the cell.
At the beginning of the experiment the solution in the beaker was yellow in color (This signified the presence of iodine). On the other hand, the cell content was clear. However, at the end of the experiment the ...

A solution with a higher solute concentration than a cell is known as hypertonic solution. A solution of lower solute solution than the cell is known as hypotonic solution and of similar concentration isotonic solution. Osmosis refers to the phenomenon whereby solution moves from a hypotonic area, across a membrane with selective permeability, to a hypertonic area. The selective membrane refers to membranes that prevents one substance from passing through but allows another. In most cases, the biological membranes are permeable to water and impermeable to solutes such as sugars and ions. The cells have an ability of regulating their internal water and salt ...