Hoo Sze Yen www.physicsrox.com Physics SPM 2011 CHAPTER 3: FORCES AND PRESSURE 3.1 Pressure Units of pressure Unit Note Pa SI unit N m-2 Equivalent to Pa N cm-2 cm Hg m water atm 1 atm = atmospheric pressure at sea level bar 1 bar = 1 atm Pressure is the force which acts normal per unit area of contact. P= F A where P = pressure [Pa] F = force [N] A = area [m2] For atmospheric pressure only 3.2 Pressure in Liquids Pressure in liquids are not dependent on the size or
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Barack Obama Two presedential candidates and many different issues between them. Both candidates have much to offer‚ but which will offer more to the country. Barack Obama has much to offer and has many good ideas to help better our economy and better everyones ideology in what the beleive. President Barack Obama’s ideas will benefit us all‚ weather you are rich or poor‚ middle class or upper class it will benefit us. His ideas will help the working class and will put many people back into work
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some of the world’s greatest minds sought answers to that question‚ only to come up with different answers. Despite the lingering mysteries‚ we know one thing for sure: Motivation is a personal decision that has to come from within. Getting and Staying Clean We tend to get serious about overcoming addiction when we realize it’s in our best interest to do so. Naturally‚ a variety of factors prompt the desire for change – personal
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Fast Foods Effect on Obesity Now a days‚ fast food is becoming a cheap and yet a popular way for people who are too busy to cook. But the cheap price of the fast food is nothing in comparison to the true price that these people are paying. Every 4 out of 10 adults in the USA will become obese in the next 5 years if they keep eating this food the way they are. Eating fast food like this is causing major health risks. Since this food is so cheap‚ it makes it convenient for people to go out and get
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TV shows about fast food — Supersize Me and Big Medicine come to mind — the perils of fast food have been spotlighted. Since we all lead busy lives‚ it’s often tempting to stop at the nearest fast food place instead of waiting to get home and cook. They’re fast‚ inexpensive‚ have tons of selection‚ and there seems to be one on every corner. However‚ next time you’re tempted to stop and pick up something fast‚ think about how much better home-cooked meals are for your family. Fast food chains‚ along
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Fast Food Facts: A Guide for Teens What is fast food and why is it so popular? Fast food is any food that is quick‚ convenient‚ and usually inexpensive. You can buy fast food just about anywhere that sells food and snacks. Vending machines and drive-thru restaurants are probably the most common places to find fast food. It’s so popular because for under $5.00 you can usually get a meal that’s satisfying. But fast food is inexpensive because it is usually made with cheaper ingredients such
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The impact of the fast food movement on the slow food movement Everything today is fast. People think fast‚ speak fast‚ walk fast‚ write fast and eat fast. "Fast food has become such an integral part of the busy American lifestyle that there are more than 300‚000 restaurants offering it throughout the United States today" (Dorfman‚ 2001). Since everything is becoming "fast" in the world‚ the slow food movement if gradually being taken over by the fast food movement and significant factors of the
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sweet desserts‚ fried fast food‚ and carbonated beverages. The convenience‚ price and predictability of fast food makes it a frequent meal choice for many people. However‚ as consumption of fast food has risen over the last three decades‚ so too have occurrences of several health issues and diseases related to fast food and unhealthy eating habits. Eaten regularly‚ fast food can put you at an increased risk for developing diabetes‚ heart disease or obesity. The fast food industry in India
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Fresh Water Cooling System Introduction Although there is an abundance of free sea water available‚ marine diesel engines do not use it directly to keep the hottest parts of the engine cool. This is because of the corrosion which would be caused in the cooling water spaces‚ and the salts which would be deposited on the cooling surfaces interfering with the heat flow. Instead‚ the water circulated around the engine is fresh water which is then itself cooled using sea water. This fresh water is
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Competitive Analysis The main competitor for Meet Fresh Outlets in Penang is Blackball outlets; Meet Fresh has 2 outlets in Penang while Blackball has 8 outlets‚ which are in Pulau Tikus‚ 1st Avenue Mall. Queensbay Mall‚ D’Piazza Mall‚ Farlim‚ Sunway Carnival Mall‚ Bukit Mertajam and Gurney Plaza respectively. Blackball has gained popularity among its competitors because of its‚ higher number of outlets in Penang. Blackball has placed itself as a reputable brand. The history of Blackball begins
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