have the same volume as the original model. Q1. Use a piece of A4 paper to make a box with a length of 10cm and a width of 3cm. Then find the volume of the box and the total surface area of the paper used to make the box. T.S.A: 5 rectangles and 4 squares 5 x L x W + 4W = 5 x 10 x 3 + 4 x 9 = 186cm Volume: 5 rectangles and 4 squares L x W x H = 10 x 3 x 3 = 90cm Q2. Make another box with the same general shape‚ but chose a different length and width. Then find the volume of the box and
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Technology of the Insulin Pump For many years‚ people who have been diagnosed with diabetes typically do not live a long life. “Diabetes mellitus is a condition in which the pancreas no longer produces enough insulin or cells stop responding to the insulin that is produced‚ so that glucose in the blood cannot be absorbed into the cells of the body”(Farflex). There have been many advances in the technology of diabetic supplies; this includes the insulin pump. “Insulin pumps are a medical device
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A stroke is a serious medical issue that can affect an individual at any moment. A stroke occurs when the flow of blood in the direction to the brain is blocked‚ due to a lack of oxygen (Ischemic stroke)‚ or when there is bleeding in the brain‚ causing brain cells to damage and/or die (Hemorrhagic stroke). Individuals of an older age are more likely to have a stroke‚ than individuals of a younger age. Individuals who experience a stroke would show the symptoms of sudden weakness; the inability to
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Case Study The Studying for a degree: benefits for all Précis The above report is based on research and analysis produced by the Office of Economic Cooperation and Development (OECD). The report comments on the advantages to the UK economy from people with a degree in terms of tax income and reduced unemployment. The report arranges an objective argument in from a number of authoratitive reports and sources‚ on whether higher education is a contributing to factor economic growth and whether
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Six-stroke engine The six-stroke engine is a type of internal combustion engine based on the four-stroke engine‚ but with additional complexity intended to make it more efficient and reduce emissions. Two types of six-stroke engine have been developed since the 1990s: In the first approach‚ the engine captures the heat lost from the four-stroke Otto cycle or Diesel cycle and uses it to power an additional power and exhaust stroke of the piston in the same cylinder. Designs use either steam
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Introduction We have heard about two and four stroke engines. Two stroke engines got its name from the fact that the required strokes are completed in one revolution. In short there is one power stroke in one revolution. In the case of four stroke engines the four strokes are completed in two revolutions‚ or there is a power stroke in two revolutions. Then how about a six stroke engine. The name of the engine has nothing to do with the number of revolutions or anything of that sort. This engine
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[Type text] [Type text] [Type text] _An experiment on the effect of surface area to volume ratio on the rate of osmosis of Solanum tuberosum L._ BACKGROUND A cell needs to perform diffusion in order to survive. Substances‚ including water‚ ions‚ and molecules that are required for cellular activities‚ can enter and leave cells by a passive process such as diffusion. Diffusion is random movement of molecules in a net direction from a region of higher concentration to a region of lower concentration
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Volume (CM3) Diameter (CM) Radius (CM) M&M’S® Thickness (CM) 1 75 108 54 0.743 2 83 120 60 0.658 Table 2 – Direct Measurement Trial M&M’S® Thickness (CM) 1 0.642 2 0.741 3 0.683 Table 3 – Calculated Averages Method Calculated Average Thickness (CM) Indirect (from Table 1) 0.701 Direct (from Table 2) 0.689 Questions: 1. When you performed Step 2 of the procedure‚ you actually made a cylinder of M&M’S®. The cylinder was rather "smushed‚" and the
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Aluminum 2.70 Gold 19.3 1. An object has a mass of 57.7 g and occupies a volume of 21.65 cm3‚ what is its density? 2. An object whose density is 1.98 x 103 kg/m3 has a mass of 35.4 g. How many cubic centimeters does the object occupy? 3. A cylinder has a radius of 12.0 cm. It has a density of 15.2 g/cm3 and a mass of 100 g. What is the height of the cylinder? (Hint: volume of a cylinder can be calculated by r2h) 4. A friend shows you a gift
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MECHANICAL SEALS FOR PUMPS S. Raghavachari Consultant Chennai Abstract Mechanical seals are pieces of engineering marvel. Process industries could meet today’s stringent environmental pollution regulations through the effective sealing of even the most difficult fluids. This paper describes different kinds of seals‚ their design‚ properties and functioning. Effect of various factors like seal balance‚ face pressure‚ temperature and lubrication on performance of seal and probable causes
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