Density is how compact particles are inside an object. Objects can be different sizes but have the same density because the density depends on how close particles are together‚ not the size of an object. The density of water is 1 g/㎤. Any object with a density less than that will float. Any object with density more than that will sink. Carbon dioxide‚ or CO2‚ also played a big role in this experiment. Many soft drinks contain CO2. Studies show that Sierra Mist had the most carbonation out of
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for humans. The diseases such as osteoporosis‚ osteoarthritis‚ bone tumour and trauma are the reasons for joint replacements in population over 50 years of age in developed countries. The Total Hip Replacement (THR) is an excellent alternative for patients suffering from joint failure caused by osteoarthritis. The historical failure of artificial implant restorative procedure has been due to the wear of components with subsequent bone resorption and aseptic loosening that limits the lifespan of implants
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Introduction: In industry‚ a heat exchanger is used to cool down streams for temperature sensitive processes. The now hot cooling water is useless to the plant unless something is done to cool it down. In industry‚ cooling water towers are used to bring the water back down to a sufficient level . In a cooling tower‚ outside atmospheric air is flowed through a “column” while the hot water sprayed into the system. Since air is never at full saturation of water (unless it is raining)‚ some of the hot
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gradually thinner cartilage. It called for cartilage wear or osteoarthritis‚ the x-ray called it usually intervertebralledsartros. The bone in the joints edges becomes stronger and the formation of "pimples". Even vertebral edges are over the years rougher and bumpier‚ known as spondylosis. The holes between the vertebrae which nerves pass through may become narrower due to bone becomes knotigare. Even counters aging‚ they can then become thinner and sag‚ so-called disc degeneration. Even herniated disc
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Kyphosis also known as “hunchback” occurs when the vertebrae in the upper back are wedge shaped instead of cylinder. This disorder can be caused by a number of things such as: Osteoporosis‚ Disk Degeneration‚ slouching/poor posture etc… Kyphosis can happen at any age but it’s most common in older women. In addition to an abnormally curved spine the symptoms can also cause back pain and stiffness in some people. Mild cases of kyphosis may produce no noticeable signs or symptoms. Depending on what
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The Chemistry of Osteoarthritis Osteoarthritis is the most common chronic condition of the joints. This usually occurs when the cartilage on the end of the joints wears down and the exposed bones rub together. This leads to loss of motion‚ stiffness‚ and joint pain. Stiffness usually occurs in the morning or after resting. Osteoarthritis is usually more common in middle-aged and older people. An estimated 27 million people age 25 and up have Osteoarthritis. Symptoms for this condition can range
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Density Lab January 24‚ 2014 Benjamin I. Purpose- The purpose of this lab is to identify the unknown substances by calculating the densities of the given substances then comparing those densities to the actual densities on the table given. II. Materials- Graduated cylinders Triple beam balance Unknown substances from bag given by teacher Table of known densities Calculator Water III. Procedure- The first thing one must do to identify which substance is which is to calculate the
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acquaint the students with basic laboratory procedures‚ methods‚ and techniques; to introduce the use of basic laboratory measuring devices; to demonstrate different methods of manipulation of numerical quantities. DENSITY AND SPECIFIC GRAVITY Materials and Methods Part 1: Density of an Unknown Solid 1. We first were asked from our laboratory instructor to attain an unknown solid and were asked to note down the number of the solid. 2. Determine the mass of the unknown solid to the
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THRUST • The force acting on a body perpendicular to its surface is called thrust. • Thrust is the total force acting on the surface of the body. • Thrust per unit area is pressure Pressure = Thrust Area S.I unit of pressure is N/m2 or Pascal EVERYDAY OBSERVATIONS RELATED TO PRESSURE: • School bags have wide straps so that the weight of the bag falls over a large area of the shoulder producing less pressure on the shoulder. Due to this less pressure
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measurements using density as an example. The density of a sample will be found experimentally and compared to a known value. The relationship of averages and different analysis techniques to percent error will also be explored. Density is a characteristic of a substance which can qualitatively be described as the amount of matter (mass) squeezed into a given space (volume). The density of substance remains the same no matter the size of the sample at a given temperature. Quantitatively‚ density can be expressed
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