stopped and talked for a while about her husband’s coming induction into the Army‚ and had finally left. Bob‚ alone in the laboratory‚ slid a little further down in his chair‚ looking with satisfaction at the results of the first test run of the new photon unit. He liked to stay after the others had gone. His appointment as project head was still new enough to give him a deep sense of pleasure. His eyes were on the graphs before him‚ but in his mind he could hear Dr. Jerrold‚ the head of the laboratory
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Cosmic Engine - Research Task 1. Describe how energy can be released from the nuclei of atoms (6) Most nuclei are stable. Consisting of protons and neutrons‚ they are unaffected by chemical reactions and have remained the same since they were formed. However‚ some nuclei are unstable and spontaneously release energy in the form of a Helium nucleus (α Alpha)‚an electron (β Beta) and γ Gamma rays. These nuclei are known as radioactive and it’s not possible to predict when a particular
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Peer-review ID: B503 Reviewer’s name: _________________ umn ID number: _________________ Photoelectric effect: using a monochromator to measure electron energy as a function of incident photon frequency to determine Planck’s constant John Greavu Partners: Daniel Erickson and Kevin Haar School of Physics and Astronomy‚ University of Minnesota‚ Minneapolis‚ Minnesota 55455 24 March 2014 The energy of ejected electrons from the cathode end of an electrode due to the photoelectric effect
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Higher Physics: Mechanics and the properties of matter Summary Notes Vectors Page 2 Equations of motion Page 7 Newton’s Second Law‚ energy and Power Page 14 Momentum and Impulse Page 18 Density and pressure Page 26 Gas Laws Page 30 Vectors A physical quantity is a measurable quantity. Physics is about the relationships between physical quantities. There are two kinds of physical quantity. One consists of a number of units‚ the other consists of a number
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Models of the Atom: a Historical Perspective John Dalton Early Greek Theories • 400 B.C. - Democritus thought matter could not be divided indefinitely. • This led to the idea of atoms in a void. fire Democritus • 1800 -Dalton proposed a modern atomic model based on experimentation not on pure reason. All matter is made of atoms. Atoms of an element are identical. Each element has different atoms. Atoms of different elements combine in constant ratios to form compounds. • Atoms are rearranged
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Optical computing can solve miniaturization problem. Optical data processing can be performed in parallel. In optical computing‚ the electrons are replaced by photons 4. What is optical computer? Discuss the every key of optical components for computing. Optical Computer: An optical computer is a device that uses the PHOTONS in visible light‚ rather than electric current to perform digital computations. An optical computer‚ besides being much faster than an electronic one‚ might also
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In analyzing the current company’s issue of the absence of Bob Knowlton‚ new photon unit project head‚ it is apparent that there were concerns gone unaddressed. The lack of communication between employees and the avoidance of conflict are seemingly the result of the recent actions taken place. The main problem in this situation is the avoidance of conflict that occurred between Knowlton and Fester‚ especially in the group meetings held each week. At one point in a group meeting Fester commented
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called ( Quantum Jump: This is when electrons jump to an excited state) the they get back to their ground state by emitting a photon ‚ the amount of energy in that photon determines its color ;( red for the lowest energy of visible light‚ increasing energy through the rainbow of orange‚ yellow‚ green‚ blue‚ indigo‚ and finally violet for the highest energy of visible light.) Photons outside the visible spectrum may also be emitted‚ but we cannot see them as we learned before. Based on the emission spectrum
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dioxide to make sugar. THE LIGHT REACTIONS: CONVERTING SOLAR ENERGY TO CHEMICAL ENERGY ● Chlorophyll takes in light energy. Other photosynthetic pigments like carotenoids and phycobilins indirectly participate in the photosynthesis by trapping photons from different wavelength of light and passing it to chlorophylls for photosynthesis as they are not capable of this function. ● Photosystems can capture solar energy. Plants use chlorophyll to get “excited.” The chlorophyll takes in the sun’s energy
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RADIATION HISTORY Basic Terminology Radiation - A form of energy carried by waves or stream of particles (photons) X-radiation - A high-energy radiation produced by the collision of a beam of electrons with a metal target in an x-ray tube High-energy Radiation - A form of radiation that is able to pass through substances (e.g. the human body) X-ray - A beam of energy that has the power to penetrate substances and record image shadows on photographic film Radiology
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