Gravitation Gravitational field strength at a point is defined as the gravitational force per unit mass at that point. Newton’s law of gravitation: The (mutual) gravitational force F between two point masses M and m separated by a distance r is given by F = | GMm | (where G: Universal gravitational constant) | | r2 | | or‚ the gravitational force of between two point masses is proportional to the product of their masses & inversely proportional to the square of their separation. Gravitational
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small lens‚ generally with a diameter less than a millimetre (mm) and often as small as 10 micrometers (µm). The small sizes of the lenses means that a simple design can give good optical quality but sometimes unwanted effects arise due to optical diffraction at the small features. A typical micro lens may be a single element with one plane surface and one spherical convex surface to refract the light. Because micro lenses are so small‚ the substrate that supports them is usually thicker than the lens
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INTRODUCTION TO BASIC RESEARCH – ‘Basic research’ is a term that is widely used but with little apparent consensus on what it actually means. The term basic research usually refers to study and research on pure science that is meant to increase our scientific knowledge base. This type of research is often purely theoretical with the intent of increasing our understanding of certain phenomena or behaviour but does not seek to solve or treat these problems. Most scientists believe that a basic
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Living organisms are composed of part water and part chemicals. The chemicals that help make up life are constructed mainly of carbon. A compound that has carbon in its composition is called an organic compound. Organic compounds also usually contain hydrogen atoms. Even though life is very complex‚ all large molecules that make up life are categorized into four large classes: lipids‚ protein‚ carbohydrates‚ and nucleic acids. These four molecules are known as macromolecules‚ due to their large size
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How is Eye Color Inherited? How do children inherit eye color? Can a child’s eye color be predicted? Why are an albino’s eyes pink? How can two brown eyed parents produce a blue eyed child? Why are my eyes a darker blue than
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SYLLABUS FOR ENTRANCE TEST 2012 UNIVERSITY OF HEALTH SCIENCES LAHORE‚ PAKISTAN STRUCTURE OF ENTRANCE TEST PAPER 2012 Sr.# Subject No. of Questions 1. PHYSICS 44 2. CHEMISTRY 58 3. ENGLISH 30 4. BIOLOGY 88 TOTAL 220 CONTENTS PHYSICS Syllabus TOS Self Test Questions CHEMISTRY Syllabus TOS Self Test Questions ENGLISH Syllabus Self Test Questions BIOLOGY Syllabus TOS Self Test Questions PAGE# 1-5 6 7-9 10-21 22 23-28 29-34 35-36 37-44 45 46-51 PHYSICS
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MTN Learn Physical Sciences Grade 12 radio support notes MINDSET LEARN XTRA GRADE 12 PHYSICAL SCIENCES RADIO BROADCAST NOTES CONTENTS Introduction ................................................................................................................ 3 Broadcast Schedules ................................................................................................ 5 Preparing for Examinations ..................................................................................
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Synthesis‚ characterization‚ crystallographic Study and antibacterial activity of sodium butyldithiocarbamate pentahydrate‚ C5H20NNaO5S2 Ayodele T. Odularu a‚ Peter A. Ajibade a‚ Bolhuis‚ A. b a. Department of Chemistry‚ University of Fort Hare‚ Private Bag X1314‚ Alice 5700‚ South Africa. b. Department of Pharmacy and Pharmacology‚ University of Bath‚ United Kingdom. Abstract Synthesis of sodium butyldithiocarbamate pentahydrate‚ C5H20NNaO5S2‚ entailed a one-pot synthesis. The process of synthesis
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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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Hummingbirds are birds that comprise the family Trochilidae. They are among the smallest of birds‚ most species measuring in the 7.5–13 cm (3–5 in) range. Indeed‚ the smallest extant bird species is a hummingbird‚ the 5-cm Bee Hummingbird. They hover in mid-air by rapidly flapping their wings 12–80 times per second (depending on the species). They are known as hummingbirds because of the humming sound created by their beating wings‚ which sometimes sounds like bees or other insects. To conserve energy
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