Question: Telephone and electrical lines are allowed to sag between poles so that the tension will not be too great when something hits or sits on

Telephone and electrical lines are allowed to sag between poles so that the tension will not be too great when something hits or sits on the line.
(a) Is it possible to have the lines perfectly horizontal? Why or why not?
(b) Suppose that a line were stretched almost perfectly horizontally between two poles that are 30 m apart. If a 0.25-kg bird perches on the wire midway between the poles and the wire sags 1.0 cm, what would be the tension in the wire? (Neglect the mass of the wire.)

Step by Step Solution

★★★★★

3.60 Rating (168 Votes )

There are 3 Steps involved in it

1 Expert Approved Answer

Step: 1 Unlock

a it is not possible to have the lines perfectly horizont... View full answer

Question Has Been Solved by an Expert!

Get step-by-step solutions from verified subject matter experts

Step: 2 Unlock

Step: 3 Unlock

Document Format (1 attachment)

530-C-PC-E (542).docx

120 KBs Word File

Students Have Also Explored These Related Physical Chemistry Questions!

You have recently been hired by Keafer Manufacturing to work in its newly established treasury department. Keafer Manufacturing is a small company that produces highly customized cardboard boxes in a...

The triangular frame ABC can be adjusted vertically between the three equal-length cords. If it remains in a horizontal plane, determine the required distance s so that the tension in each of the...

The steel plate shown supports six 2-in. diameter idler rollers mounted on the plate as shown. Two flat belts pass around the rollers, and rollers A and D are adjusted so that the tension in each...

The steel plate shown will support six 50-mm-diameter idler rollers mounted on the plate as shown. Two flat belts pass around the rollers, and rollers A and D will be adjusted so that the tension in...

A uniform meterstick pivoted at its center, as in Example 8.5, has a $100-\mathrm{g}$ mass suspended at the $25.0-\mathrm{cm}$ position. (a) At what position should a $75.0-\mathrm{g}$ mass be...

Published by CQ Press, an Imprint of SAGE Publications, Inc. www.cqresearcher.com Future of Cars Are Americans ready for self-driving vehicles? C ars that drive themselves, long a staple of science...

Read the following and state the issues. Target Stores: The Hunt for "Unvolunteered Truths" New York Times reporter Charles Duhigg's research for an article on predictive analytics in marketing had...

Managing Scope Changes Case Study Scope changes on a project can occur regardless of how well the project is planned or executed. Scope changes can be the result of something that was omitted during...

I am so lost with all of this and the worst part it is due in an hour and a half. I don't know what to do please help. In this course you will have the opportunity to apply the concepts learned to a...

Companies can intentionally commoditize their products or services as a strategy to make money. Discuss using these two different cases below how companies can intentionally commoditize their...

Johnson interviewed for a position with an automobile agency and was offered the job, which he accepted. The contract called for Johnson to begin work on June 1, 2008. On June 1 when he reported for...

if i have student database using MySQL (PHPMyAdmin) and I want to make a simple login page in my database has a password and a student id and I won\\\'t use it for the login page so the student will...

14. Unlike monkeys, todays humans have feet that are not suited for grasping objects. Therefore, a thousand years from now, probably humans will still have feet that are not suited for grasping...

For each of the following situations, indicate the amount of the penalty that could be imposed on the tax return preparer: a. A tax return preparer understates the taxpayers tax liability with a...

When employees of County Bank are summoned to serve on jury duty, the firm pays its workers the difference between their regular wages and the amount received for jury duty. One such employee has...

The company sells large industrial equipment. A piece of equipment with an original cost of $250,000 and an original selling price of $390,000 was recently returned. It is expected that the equipment...

The Income Statement and Balance Sheet columns of Braiden Company's work sheet are shown below. Braiden Company Work Sheet (Partial) For Year Ended December 31, 20 Additional information needed to...

The company started business at the beginning of Year 1. The company applies the lower-of-cost-or-market (LCM) rule to its inventory as a whole. Inventory cost and market values as of the end of Year...

14.43 Give at least one reason for classifying each of the following decisions as either routine or strategic. a. Storage Technology's decision to build a central, computerized warehouse to serve its...

34. X-rays of wavelength 0.01520 nm are scattered from a carbon atom. The wavelength shift is measured to be 0.000326 nm. (a) What is the scattering angle? (b) How much energy, in eV, does each...

35. X-rays of frequency 1.210 1018 Hz are scattered from electrons in an aluminum foil. The frequency of the scattered X-rays is 1.203 1018 Hz. (a) What is the scattering angle? (b) What is the...

36. IE The Compton effect can occur for scattering from any particle for example, from a proton. (a) Compared with the Compton wavelength for an electron, the Compton wavelength for a proton is (1)...

Using the hexadeci mal ASCII code for the first letter of your first name, draw the equivalent binary signal using the NRZ - I method. T

1. The minimum wage earners of the National Capital Region are believed to be receiving less than Php 5,000.00 per day. The CEO of a large supermarket chain in the region is claiming to be paying its...

Tinbergen Cans expects sales next year to be $50,000,000. Inventory and accounts receivable (combined) will increase $8,000,000 to accommodate this sales level. The company has a profit margin of 6...