Documents about Incandescent Light

  • 4 Pages


    Allegheny, ECON 290

    Excerpt: ... Entrepreneurship I Quiz Notes 10/29/08 Parts of Unions plan Boost sales Switches to commission based approach Replaces 11 people Corrugation is too narrow Quality is bad She does hands-on original research Poor quality of paints Outsourcing Long lag time between resupply times She keeps after Lowes by getting the business She goes store by store to build the business back up Animal containment facilities (barns) She moves on up to roofing (where margins are higher) How does she manage her empire How she manages the weekly reports She checks in with managers once a week in person Very successful Growth focused Opportunity focused Edison one of the most famous inventors Phonograph Incandescent light bulb Improved on telegraph Improved on telephone Who was on his team Most significant thing his research lab What about his team/? He is brilliant in chemistry, physics, mechanics, etc. One thing he got messed up on: Math ...

  • 5 Pages

    Exam 2 quiz problems

    Penn State, EGEE 102

    Excerpt: ... tor operates for 15 hours every day, what is the annual operating cost of the refrigerator, if the cost of electricity is $0.11 per kWh? Annual operating cost = 198 / 1000 * 15 * 0.11 * 365 = $119.2455. Highly energy efficient appliances have an Energy Star label. Calculate the amount of heat energy required to heat 126 lbs of water from 62oF to 121oF. Amount of heat energy required = 126 * (121 - 62) = 7434 BTUs. Calculate the amount of heat energy required to heat 185 lbs of water from 61oF to 134oF. Amount of heat energy required = 185 * (134 - 61) = 13505 BTUs. For most efficient operation, keep the freezer filled to capacity. Chapter 6 (10) A 120 watt incandescent light bulb is operated for 6 hours, and a 15 watt fluorescent light bulb is operated for the same period of time. At 8 cents per kWh, what is the cost savings of the fluorescent bulb? Energy consumed by Incandescent light bulb = 120 / 1000 * 6 = 0.72 kWh Energy cost for Incandescent light bulb = 0.72 * 8 / 100 = $ 0.0576 (round up to $0.06) Ene ...

  • 2 Pages

    X-Ray Diffraction

    Wisconsin, ME 240

    Excerpt: ... are generated g. Heavy elements are more efficient producers of x-rays than light elements F. Other notes from Part 2 a. General Wavelength of x-rays: 10^-6 to 10^-10 cm b. Time-line of X-rays Part 3: The Generation of X-Rays and X-Ray Spectra A. Generation of X-Rays a. Electrons are boiled off a heated tungsten filament (similar to the operation of an ordinary incandescent light bulb) b. The large voltage placed between the metal focusing cup and the tungsten filament quickly accelerates electrons towards the focusing cup c. Some of the electrons pass through he hole in the focusing cup where they then travel a short distance to the target d. Along with a great deal of hear, x-rays are generated when the accelerated electrons strike the metal target e. X-rays then pass out of the x-ray tube through beryllium windows, that are transparent to x-rays, to be used in diffraction studies B. The Two Methods of Generating X-rays a. Involves collisions between accelerated electrons and the nuclei of the atoms of ...

  • 22 Pages


    Arizona, CHEM 151

    Excerpt: ... GenChem Week 5 Today's Agenda: Review understanding of light. Develop the day's problem. Perform the first challenge: measure the light emitted by an incandescent light bulb. Analyze results: determine the amount of light generated at different wavelengths. Determine the amount of energy generated at different wavelengths. Perform the final challenge: measure the light emitted by other light sources. Analyze results: determine the amount of light and energy generated at different wavelengths. Secondary analysis: compare light generated to power required. Final analysis: draw conclusions. Making Light Efficiently GenChem The chemistry of green Why would someone say that the 21st century must be the "Green Century"? GenChem Global Warming Why the concern? GenChem Greenhouse Gases What are they? Where do they come from? What's the connection to global warming? Gases that absorb energy (trap heat). Burning of fossil fuels, among other things. Increased amounts of greenhouse gases in ...

  • 7 Pages

    Review Sheet for Final Exam E8 (2)

    UC Irvine, ENVIRON E8

    Excerpt: ... leading to environmental collapse: 1. Environmental Damage 2. Climate changes 3. Hostile neighbors 4. Friendly trade partners 5. Society's response to environmental problems Four explanations why societies make disastrous decisions: 1. Failure to anticipate problems 2. Failure to perceive problems when it arrives 3. Failure to try and solve the problems 4. Unsuccessful solutions *Twelve environmental problems AND how they are linked Two primary environmental problems: 1. Deforestation 2. Soil Problems *Two crucial behavioral choices Tragedy of the Commons: The depletion of a shared resource. The problem is that the people's actions will not make a difference in the gathering of resources which causes a extreme tragedy. Brown Restoring Earth chapters Ways to restore earth Ways to offset increase in energy use (using incandescent light bulbs, hybrid vehicles) Examples of renewable energy (wind, geothermal, hydro, solar, wave) Questions to think about: Identify the environmental problem you feel is the most i ...

  • 3 Pages

    Experiment5 copy

    Cornell, CHEM 2070

    Excerpt: ... Experiment #5: Optical Spectrometry Purpose: The purpose of this experiment was to observe the emission spectra of various compounds by methods of spectrometry including the use of a spectrometer and a computer, to conceive and perform a procedure to identify the composition of a solution containing multiple ionic salts, and to construct an energy-level diagram for hydrogen. Results and Discussion: First, the spectra of a fluorescent light, an incandescent light , and helium were observed through a spectrometer. The wavelength, resulting color, and intensity were recorded for each emission and line of the spectra. Color, above each spectrum, wavelength, marked on each spectrum, and intensity, indicated below each spectrum, are all shown in the attached appendix, Experiment 5: Optical Spectrometry. See this appendix for results tabulated. Intensity was estimated on a scale of 0-10 for readings recorded through the spectrometer, and recorded out of a scale of 4000 for the readings measured by the computer. W ...