Answered: A car is traveling on a highway at 28…

Elements Of Electromagnetics

7th Edition

ISBN:9780190698614

Author:Sadiku, Matthew N. O.

Publisher:Sadiku, Matthew N. O.

ChapterMA: Math Assessment

Section: Chapter Questions

Problem 1.1MA

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2. A car is traveling on a highway at 28 m/s. a) What is the pressure at the bottom of a car's gas tank. that is a cube with side lengths of 0.5 meters? Assume the tank is full of gasoline with a denisty of 800 kg/m^3. b) How much pressure does a pump need to supply in order to draw gasloine from the bottom of the tank to the top of the tank? The velocity of the gasoline once it is pumped out of the tank should be 1 cm/s; the gas at the bottom of the tank is at rest. c) The gasoline from part b flows through a tube (cylinder) of radius lcm before entering a larger tube of radius 10cm. What will the velocity of the gasoline be in the larger tube? d) The tires on the car have an outer radius of 0.2 meters. How many complete rotations did the tires go through in one hour? Hint: Determine how far the car travels in one hour. e) How many hours can the car travel before running out of gas? f) During your journey. you hit a pothole and have to change your tire. You get your spare tire out. but it starts to roll without slipping down a hill as you are taking off the damaged tire. The spare tire starts at rest at the top of a hill that is 25-meter tall. What will the final velocity of the tire be at the bottom of the hill? The moment of inertia of the tire is 1/2 m(r2/1+ r2/2) ; the inner radius of the tire is 0.1m and the outer radius is 0.2m. g) How many rotations will the tire have gone through down the hill. if the hill has au angle of 20° above the horizontal?

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