Answered: A cable used to lift heavy materials…

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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1. A cable used to lift heavy materials can resist breaking even under a load of 1 meganewtons. The steel cable must support twice that load for safety purposes. By how much the steel cable will stretch if it carries 1 meganewtons of load? Assume 8.0 m initial length of the cable.

2. Ships and sailing vessels often carry lead ballast in various forms, such as bricks, to keep the ship properly oriented and upright in the water. Suppose a ship takes on cargo and the crew jettisons a total of 0.500 m3 of lead ballast into water 2 000 m deep. Seawater's density is equal to 1.025 g/cc while lead's bulk modulus equals to 42.0 GPa.

Calculate the weight of water in a column with cross section of 1.00 m2.
Find the change in the pressure at 2.0 km depth.
Find the change in the volume of the lead at 2.0 km depth.

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