Speed of Sound in Air By: James Chen Lab Partner: Jin Zhang and Jake Salpeter Phys 130‚ Lab section: EE11 TA: Khaled Elshamouty Date of lab: October 29‚ 2013 Introduction Sound is a longitudinal (compressional) wave caused by a vibrating source. In this experiment‚ we use standing sound waves created by the tuning forks to determine the speed of sound in air in a tube when it reaches different resonances. In this lab we focused primarily on using standing sound waves (compressional
Premium Sound Frequency Wave
Air pollution has become one of the most important concerns of the local authorities of Latin- American cities. Bogotá‚ like as other urban centers in South America such as Sao Paulo‚ Mexico City and Santiago de Chile‚ shows significant levels of air pollution‚ levels that may represent a high risk for the population’s health and certainly a reduction in the quality of life of its inhabitants. Bogotá‚ capital of Colombia‚ is one of the largest cities of Latin America; with a population of around
Premium Smog Air pollution Mexico City
discussing the Clean Air Act of 1970 along with the amendments made in 1977 and 1990. I will discuss the law and some of the provisions that have been made. I will discuss the economic impact as a result of this law; if there are any fines‚ costs‚ or benefits economically along with data to support this information. I will also discuss my feelings on whether this law has been beneficial and also provide information to support my answer. Clean Air Act The Clean Air Act of 1970 is a federal
Premium United States Environmental Protection Agency Air pollution
Air Asia A. Introduction 1. Objective and scope This paper will analyze the internal and external environment of Air Asia and will look into how it uses Management Information System ( MIS )‚ specifically its online reservation system to gain competitive advantage. And also discuss why and how important is MIS to Air Asia in running its business. 2. The Important of MIS Low Cost Carriers (LCC) business model is based on no frills service. This means that cost savings is a critical success factor
Premium Airline Low-cost carrier US Airways
Air Pollution 20.000 liters of air is what we breathe on a daily basis. Air is something most people take for granted‚ you don’t see it around you and breathing goes automatically. But every time we inhale we risk inhaling dangerous chemicals which found their way in our air. Air pollution is the presence of dangerous chemicals in the air that we breathe. It is a change in the air which influences humans health and organism on the planet. Many think that `gases’’ pollute the air‚ those gases
Premium Oxygen Ozone Water
AIR POLLUTION The main reason of Air Pollution is burning of fossils fuels in large quantities accent decades has resulted in gradual increase in carbon dioxide content in the atmosphere. It is estimated that content of carbon dioxide has increased by 25% during the last 100 years. Carbon dioxide allows in solution to pass through but absorbs out going terrestrial radiation increase of Carbon dioxide in the atmosphere has the effect of increasing the temp of atmosphere. It is estimated that global
Premium Oxygen Air pollution Pollution
Causes of air pollution: Unwanted material present in air is referred as air pollution. The causes of air pollution may be * Natural process: For instance volcanic eruption and forest fire because of lightening. * Man- made process: for instance combustion of fossil fuels. Most of the air pollution is man – made. In metropolitan areas‚ combustion of petrol and its byproducts result in release of air pollutant. Incomplete combustion releases a toxic compound called carbon monoxide in to
Premium Air pollution Carbon dioxide Smog
Air Pollution in the World OUTLINE I. Nowadays air pollution became very important problem in our world. II. Air pollution is caused by 3 factors. a. Factories b. Cars c. Human activities III. These three main problems listed above cause huge effects on our planet. a. Global warming b. Acid rains c. Health problems IV. Regarding all the factors and the problems they cause‚ we should start changing our world.
Free Air pollution Pollution Global warming
AIR QUALITY : Air pollution comes from many different sources: stationary sources such as factories‚ power plants‚ and smelters and smaller sources such as dry cleaners and degreasing operations; mobile sources such as cars‚ buses‚ planes‚ trucks‚ and trains; and naturally occurring sources such as windblown dust‚ and volcanic eruptions‚ all contribute to air pollution. Air Quality can be affected in many ways by the pollution emitted from these sources. These pollution sources can also emit a
Premium Pollution Air pollution Environmentalism
unattended. PROCEDURE: A. Lighting a Burner (see page 7) 1. Close air adjustment. Open air adjustment by rotating barrel 2 times. 2. Close gas adjustment valve. Open gas adjustment valve at least 2 times. 3. Strike match and hold flame at the top of the burner. 4. Turn gas on at main gas valve. 5. Adjust height of flame to 8-10 cm. (flame may be yellow or blue.) 6. Close air vents for luminous yellow flame. Open the air adjustment for blue and double-cone blue flames. 7. Draw burner and
Premium Atmosphere Mass