! It is known that the reliability function for a critical solid state power unit for use10,t20 and t measured in years.10+tin a communication satellite is R(t)(a) How many units must be placed in parallel in order to achieve a reliabilityof 0.98 for 5 year operation?(b) If there is an additional common mode with constant failure rate of 0.002as a result of environmental factors, how many units should be placed inparallel?

Answered: Image /qna-images/answer/e852087a-1a3c-4c01-999c-45238a04b049.jpg

Answered: It is known that the reliability…

MATLAB: An Introduction with Applications

6th Edition

ISBN:9781119256830

Author:Amos Gilat

Publisher:Amos Gilat

Chapter1: Starting With Matlab

Section: Chapter Questions

Problem 1P

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MO22. Supercavitation is a propulsion technology for undersea vehicles that can greatly increase their speed. It occurs above approximately 50 meters per second, when the pressure drops off sufficiently to allow the water to dissociate into water vapor forming a gas bubble behind the vehicle. When the gas bubble completely encloses the vehicle, supercavitation is said to occur. Eight (n = 8) tests were conducted on a scale model of an undersea vehicle in a towing basin with the average observed speed x 102.2 meters per second. Assume that speed is normally distributed with o = 4 meters per second. Use a = 0.05, test Ho: µ = 100 versus Hi : µ < 100. What is the value of zo (2 decimal places, 0.00) and what can be concluded? Provide all the necessary solutions. z0 = Blank 1 and Blank 2 the Blank 3 hypothesis.
38. Given the power regression model y = 40x^1.3, which is the linear regression model after transforming to a log-log graph? Y = 1.3X + 1.60 Y = 0.20X + 0.11 Y = 0.20X + 0.36 Y = 1.60X + 0.11
1. Supercavitation is a propulsion technology for undersea vehicles that can greatly increase their speed. It occurs above approximately 50 meters per second when pressure drops sufficiently to allow the water to dissociate into water vapor, forming a gas bubble behind the vehicle. When the gas bubble completely encloses the vehicle, supercavitation is said to occur. Eight tests were conducted on a scale model of an undersea vehicle in a towing basin with the average observed speed x = 102.2 meters per second. Assume that speed is normally distributed with known standard deviation o =4 meters per second. 1.1. Test the hypothesis H0 : µ=100 versus H1: µ < 100 using a=0.05. 1.2. What is the P-value for the test in part 1.1.? 1.3. Compute the type II error if the true mean speed is as low as 95 meters per second. 1.4. What sample size would be required to detect a true mean speed as low as 95 meters per second if you are willing to accept a type Il error of 0.15?
3. A large tank with the capacity of 500 gallons is fully filled with pure water. Brine containing 2 pounds of salt per gallons is pumped into the tank at a rate of 5 gal/min. Find the amount A(t) pounds of salt in the tank at timer minutes, if the well-mixed solution is pumped out (a) with the same rate as the entering one; and (b) with the rate of 10 gal/min. In case (a), how much salt is in the tank after a long time? In case (b), what is the concentration of the solution in the tank by the time it is empty? (c) Let everything be the same except that, initially, the tank is filled with 250 gallons of pure water, while the well-stirred solution is pumped out with the flow rate of 2.5 gal/min. Find (t). What is the concentration of the solution in the tank by the time it is fully filled? Hint: (a) The volume of the solution in the tank at time (b) The volume of the solution in the tank at time minutes is V(t)= 500 gallons minutes is V(t)=500-5r gallons (c) The volume of the solution…
The table gives the annual US emissions, H(t), of "super greenhouse gases," in millions of metric tons of carbon-dioxide equivalent.¹ Let t be in years since 2000. ¹Includes HFCs (hydrofluorocarbons), PFCs (perfluorocarbons), SF6 (sulfur hexafluoride), and NF3 (nitrogen trifluoride). www.epa.gov/climate-indicators, accessed October 3, 2019. The units are Year 2002 2004 2006 2008 2010 2012 2014 The integral represents the H(t) 142.3 139.6 144.1 157.5 164.0 170.1 180.1 (a) What are the units and meaning of i 6₂1²³, H(t)dt? US emissions of hydrofluorocarbons during the period i to
MO22. Supercavitation is a propulsion technology for undersea vehicles that can greatly increase their speed. It occurs above approximately 50 meters per second, when the pressure drops off sufficiently to allow the water to dissociate into water vapor forming a gas bubble behind the vehicle. When the gas bubble completely encloses the vehicle, supercavitation is said to occur. Eight (n = 8) tests were conducted on a scale model of an undersea vehicle in a towing basin with the average observed speed x 102.2 meters per second. Assume that speed is normally distributed with o = 4 meters per second. Use a = 0.05, test Ho: H = 100 versus H1 : H< 100. What is the value of zo (2 decimal places, 0.00) and what can be concluded? Provide all the necessary solutions. 20 = Blank 1 and Blank 2 the Blank 3 hypothesis. Blank 1 Add your answer Blank 2 Add your answer Blank 3 Add your answer
25. Given the exponential regression model y = 15 * 1.9^x, which is the linear regression model after transforming to a semi-log graph? Y = 0.07X + 1.18 Y = 0.28X + 0.07 Y = 1.18X + 0.28 Y = 0.28X + 1.18

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