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College Physics

11th Edition
Raymond A. Serway + 1 other
ISBN: 9781305952300

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Section
BuyFindarrow_forward

College Physics

11th Edition
Raymond A. Serway + 1 other
ISBN: 9781305952300
Textbook Problem

The radius of a circle is measured to be (10.5 ± 0.2) m. Calculate (a) the area and (b) the circumference of the circle, and give the uncertainty in each value.

(a)

To determine
The area of the circle.

Explanation

Given info: The radius of circle is (10.5±0.2)m .

Explanation:

The formula to calculate the area of the circle is,

A=πr2

  • A is the area of the circle,
  • r is the radius of the circle,

Substitute (10.5±0.2)m for r to find A .

A=π[10.5m±0.2m]2=π[(10.5m)2±2(10.5m)(0

(b)

To determine
The circumference of the circle.

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