You hang a 30 kg mass from the end of a rod that is 12 m by 2 mm by 2 mm. You observe that the rod's length increases to 12.3 m. (Take g=9.8 m/s²) 1) 2) The tension in the rod FT = 3) the rod is A = The strain in the rod is The cross-sectional area of

You hang a 30 kg mass from the end of a rod that is 12 m by 2 mm by 2 mm. You observe that the rod's length increases to 12.3 m. (Take g=9.8 m/s²) 1) 2) The tension in the rod FT = 3) the rod is A = The strain in the rod is The cross-sectional area of

College Physics

11th Edition

ISBN:9781305952300

Author:Raymond A. Serway, Chris Vuille

Publisher:Raymond A. Serway, Chris Vuille

Chapter1: Units, Trigonometry. And Vectors

Section: Chapter Questions

Problem 1CQ: Estimate the order of magnitude of the length, in meters, of each of the following; (a) a mouse, (b)...

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Concept explainers

Mechanical Properties of Solids

There are three types of matter- solid, liquid and gas. Out of them, solids have a rigid shaped and size. The intermolecular forces of attractions in solids are greatest. Mechanical properties are the physical properties of a material which it shows, when it is provided with certain amount of force or load. These properties are to be kept in mind for various purposes. When a force is applied to an object, the object may or may not get deformed depending upon its elastic property. But every time the object develops a restoring force against the force applied. This is commonly known as stress. If the object changes its dimensions due to the force applied it develops strain ( which is the ratio of change in dimension to the original dimension).

Question

You hang a 30 kg mass from
the end of a rod that is 12 m by 2 mm by 2
mm. You observe that the rod's length
increases to 12.3 m. (Take g-9.8 m/s²)
1)
2)
The tension in the rod FT =
3)
the rod is A =
The strain in the rod is
The cross-sectional area of
◄►
Important remark:
In Moodle, the number 2 x 10-³ is written
as 2e-3 or 2*10^-3. Don't use the letter x for
multiplication.

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