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Solved: If the resultant couple of the three couples

Engineering Mechanics: Statics | 14th Edition | ISBN: 9780133918922 | Authors: Russell C. Hibbeler ISBN: 9780133918922 126

Solution for problem 4-69 Chapter 4

Engineering Mechanics: Statics | 14th Edition

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Engineering Mechanics: Statics | 14th Edition | ISBN: 9780133918922 | Authors: Russell C. Hibbeler

Engineering Mechanics: Statics | 14th Edition

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Problem 4-69

If the resultant couple of the three couples acting on the triangular block is to be zero, determine the magnitude of forces F and P. F y z D P F A P C B x 600 mm 150 N 150 N 400 mm 300 mm 500 mm Prob. 469

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Biology 130 : Exam 3 Diversity of Life Diversity of Life : total of all variations in forms, functions, and behaviors. Biodiversity : number of all the surviving species in the world. Number of species increases due to evolution and decreases due to extinction. CLASSIFICATION OF LIVING ORGANISMS ­Domain, Kingdom, Phylum, Class, Order, Family, Genus, Species. Living organisms are currently classified in to 3 domains and 6 kingdoms. Kingdoms are Archaebacteria, Eubacteria, Plantae, Animalia, Fungi, Protista. Domain Archaea­Prokaryotic ­Kingdom Archaebacteria Has many ancestral characteristics –Cell wall type 1 Can survive in extreme conditions Domain Bacteria­Prokaryotic ­Kingdom Eubacteria It’s the typical bacteria – Cell all type 2 Domain Eukarya­Eukaryotic ­ Kingdom Protista – Most no cell wall, mostly single celled organisms ­ Kingdom Plantae­ cellulose cell wall, multicellular metazoans, producers ­ Kingdom Animalia­ no cell wall, multicellular metazoans, consumers ­ Kingdom Fungi –Chitin cell wall, mostly multicellular metazoans, decomposers *Prokaryotic : Before+Kernel – No nucleus, no membrane bound organelles. *Metazoan = multicellular organism that has to have all of its cell types to survive Body shape of bacteria related to name: Spherical shaped­coccus Rod shaped­ bacillus Spiral shaped­ spirillum Form chains = strepto Form sheets = staphylo ­Earliest antibiotics discovered were produced by bacteria and fungi. Harmful bacteria: Streptococcus, Staphylococcus, Clostridium (Tetanus/ botulism), Rickettsia (Rock Mountain Spotted Fever), Borrelia (Lyme disease). ­Viruses are non living and non cellular. Cannon reproduce without using a host cell ( the reason why it is non living). Non domain no kingdom. Can evolve because they have DNA and RNA. Smaller than bacteria (30­100 nanometers). Kingdom Protista ­Mostly single celled, eukaryotic, most found in water, Have to have moisture, highly diverse. Major groups ­Amoeba­like cells­ move with pseudopods. Ex) Amoeba, Foraminifera. ­Cells with cilia­ Paramecium, Stentor. ­Cells with flagella: Giardia, Euglena (protest that undergoes photosynthesis) Some are intracellular parasites. Plasmodium and Toxoplasma. ­Plasmodium causes malaria. ­Toxoplasma travels around in animal feces. (Carnivore and omnivore.) Causes birth defects. Some are plant­like protistans: Rhodophyta and Phaeophyta

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Chapter 4, Problem 4-69 is Solved
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Textbook: Engineering Mechanics: Statics
Edition: 14
Author: Russell C. Hibbeler
ISBN: 9780133918922

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Solved: If the resultant couple of the three couples