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Use the differential equation approach to find io(t) for t

Basic Engineering Circuit Analysis | 11th Edition | ISBN: 9781118539293 | Authors: J. David Irwin ISBN: 9781118539293 159

Solution for problem 7.2 Chapter 7

Basic Engineering Circuit Analysis | 11th Edition

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Basic Engineering Circuit Analysis | 11th Edition | ISBN: 9781118539293 | Authors: J. David Irwin

Basic Engineering Circuit Analysis | 11th Edition

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Problem 7.2

Use the differential equation approach to find io(t) for t > 0 in the network in Fig. P7.2. 6 k 6 k 12 V 12 k t = 0 + i o(t) 100 F Figure P7.2

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Heart The heart is not the most important part of the body, but the brain. What makes the heart important is that it gives the brain oxygen-rich blood. Provides the body with oxygen-rich blood Aerobic muscle Supplies oxygen through coronary arteries Coronary Artery Disease Blood clots Takes years to develop Body develops alternate blood vessels Can be reversed through healthy eating, as well as exercising Exercise Allows arteries to become larger Causes collateral circulation angiogenesis Lowers inflammation Increases HDL Carriers of cholesterol There is only one type of cholesterol VLDLs (Lipoproteins) Deliver lipid to the body May become HLDLs Opposite of the LDL Take fat out of the artery and into the liver LDLs ("bad") Deliver fat throughout the body Accumulates in undesired areas If it is 5% smaller, it has a 50% increased risk of contributing to artery disease The small ones are really bad High sugar diets make really small LDLs Gets through a damaged area of the wall Damage comes from High blood glucose High blood pressure Inflammation Chemicals released during inflammation cause damage Reduced by plants, omega 3s, exercise Adhesion molecules result due to the blood vessel damage, making it sticky When fat is left out somewhere it turns rancid (gets oxidized) and macrophage consumes it, becoming filled with pus Atherosclerosis plaques Rupture causes heart attack CAD Risk factors HDL 60 or more subtracts one risk factor Family history First degree relative Male: before 55 Female: before 65 Smoking Benefits found in a matter of days after quitting 140/90 blood pressure on 2 separate occasions in a doctor's office High cholesterol: low HDLs, high LDLs Fasting glucose BMI over 30, waist circumference over 40" males, 35" females Inactive lifestyle There is no significant difference between exercise and drugs in the secondary prevention of coronary heart disease, stroke, heart failure, and diabetes. Nutrition is even more important for prevention. Secondary prevention Prevent a disease from getting worse (once it is present) HDL takes cholesterol out of plaques Two or more CAD risk factors require medical treatment before exercise for males over 55 and females over 65. ABCs of Prevention for Heart Disease Aspirin Lowers inflammation (weight loss, exercise and plants also lower inflammation) Blood pressure medication (exercise on a daily basis serves as a substitute, fiber, omega 3s) Cholesterol-lowering medications Side effects Lower vitamin d levels Free radicals Muscles more prone to be sore after working out Don't smoke, vitamin D Exercise Fish oil Glucose-control medication Polypill A,B,C,G Inactivity 10,000 steps per day to 2,000 steps for weeks study BF percentage and BMI went down Visceral fat went up 7%, blood pressure, blood glucose, and TGS went up significantly Macrophage infiltrates fat, causing inflammation Neurodegeneration, tumor growth Exercise lowers inflammation Omega 6s are used to help increase white cell movement through the blood. Omega 3 is the opposite. Corn and soybean oil, besides being GMOs, are fed to animals 1:1, 4:1 omega 6/omega 3 ideal ratio Anti-inflammatory foods Hot peppers and hot sauce Resveratrol Apples Blueberries and grapes Wine is the best source Also lowers blood clotting Garlic and onions Contain a chemical similar to aspirins called allycin Ginger Wasabi Black and green tea Two cups of green tea is the same as walking 2 extra miles a day or burning 200 calories Apples Quercetin Helps wake people up Tomatoes Better when cooked

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Chapter 7, Problem 7.2 is Solved
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Textbook: Basic Engineering Circuit Analysis
Edition: 11
Author: J. David Irwin
ISBN: 9781118539293

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Use the differential equation approach to find io(t) for t