Figure P15.80(a)(b)81. I build a square wheel (a thin solid square slab of side L) as anamusing experiment, and set it in motion. If its lateral speed is v,what is its angular speed? Write down an expression for the posi-tion of one of the corners as a function of time. .82. What would be the period of oscillation of this book if youheld it at one corner between index finger and thumb andallowed it to swing slightly? To first order, ignore any effecton the oscillation by friction between your fingers and thebook. .83. You have a teardrop-shaped 2.00-kg object that has ahook at one end and is 0.28 m long along its longest axis(Figure P15.83). When you try to balance the object on yourfingers, it balances when your fingers are 0.20 m from thehook end. When you hang the object by the hook and set itinto simple harmonic motion, it completes 10 cycles in 11 s.What is its rotational inertia I? .0.28 mFigure P15.832.00 kg0.20 mPRACTICE

Given-Information:- Mass of Tear-Drop,m = 2.00 kg Length, l = 0.28 m T = 11 sg = 9.81 m/s2…

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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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Concept explainers

Stress transformation

The term stress indicates the measure of internal forces that develop due to an external force's application on an object. When a specific external force is applied to an object, internal stress generates in the material. The value of stress can obtain by taking the ratio of the externally applied force and cross-sectional area of the object. There are different types of stress depending on the type of external force.

Question

Figure P15.80
(a)
(b)
81. I build a square wheel (a thin solid square slab of side L) as an
amusing experiment, and set it in motion. If its lateral speed is v,
what is its angular speed? Write down an expression for the posi-
tion of one of the corners as a function of time. .
82. What would be the period of oscillation of this book if you
held it at one corner between index finger and thumb and
allowed it to swing slightly? To first order, ignore any effect
on the oscillation by friction between your fingers and the
book. .
83. You have a teardrop-shaped 2.00-kg object that has a
hook at one end and is 0.28 m long along its longest axis
(Figure P15.83). When you try to balance the object on your
fingers, it balances when your fingers are 0.20 m from the
hook end. When you hang the object by the hook and set it
into simple harmonic motion, it completes 10 cycles in 11 s.
What is its rotational inertia I? .
0.28 m
Figure P15.83
2.00 kg
0.20 m
PRACTICE

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