27P A student’s weight displayed o... [FREE SOLUTION]

Book edition 7th

Author(s) Douglas C. Giancoli

Pages 978 pages

ISBN 978-0321625922

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Short Answer

A student’s weight displayed on a digital scale is \({\bf{117}}{\bf{.2}}\;{\bf{lb}}\). This would suggest her weight is

(a) within\({\bf{1\% }}\)of\({\bf{117}}{\bf{.2}}\;{\bf{lb}}\).

(b) exactly \({\bf{117}}{\bf{.2}}\;{\bf{lb}}\).

(c) somewhere between \({\bf{117}}{\bf{.18}}\;{\bf{lb}}\) and \({\bf{117}}{\bf{.2}}\;{\bf{lb}}\).

(d) somewhere between \({\bf{117}}{\bf{.0}}\) and \({\bf{117}}{\bf{.4}}\;{\bf{lb}}\).

The weight of the student is somewhere between \(117.18\;{\rm{lb}}\)and \(117.22\;{\rm{lb}}\).

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Step by Step Solution

TABLE OF CONTENTS :

TABLE OF CONTENTS

Step 1: Precision and accuracy

Precision is the term used to symbolize that any certain individual refers to an exact and specific object. On the other hand, accuracy refers to the degree of closeness of a measurement to the original value of the object.

A digital scale gives variations in the measurement values because of the approximation or precise error. Mostly, in physics, approximation is not considered.For example, in problems of friction, air resistance is neglected, but it exists in the real world. So, similarly, youshould be aware of the approximations and significant figures.

Step 2: Digital scale

Whilemeasuring the weight of a student using a digital scale, approximation should be taken into consideration. In the given case, the weight of the student should be somewhere between \(117.0\;{\rm{lb}}\)and \(117.4\;{\rm{lb}}\).

Option (d) is the correct answer asthe weight of the studentlies somewhere between \(117.0\;{\rm{lb}}\)and \(117.4\;{\rm{lb}}\).

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Physics Principles with Applications

Answers without the blur.

Short Answer

A student’s weight displayed on a digital scale is \({\bf{117}}{\bf{.2}}\;{\bf{lb}}\). This would suggest her weight is

(a) within\({\bf{1\% }}\)of\({\bf{117}}{\bf{.2}}\;{\bf{lb}}\).

(b) exactly \({\bf{117}}{\bf{.2}}\;{\bf{lb}}\).

(c) somewhere between \({\bf{117}}{\bf{.18}}\;{\bf{lb}}\) and \({\bf{117}}{\bf{.2}}\;{\bf{lb}}\).

(d) somewhere between \({\bf{117}}{\bf{.0}}\) and \({\bf{117}}{\bf{.4}}\;{\bf{lb}}\).

Step by Step Solution

Step 1: Precision and accuracy

Step 2: Digital scale

Most popular questions for Physics Textbooks

Question: A helium balloon, assumed to be a perfect sphere, has a radius of 24.0 cm. At room temperature (20°C), its internal pressure is 1.08 atm. Determine the number of moles of helium in the balloon, and the mass of helium needed to inflate the balloon to these values.

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Physics Principles with Applications

Answers without the blur.

Short Answer

A student’s weight displayed on a digital scale is \({\bf{117}}{\bf{.2}}\;{\bf{lb}}\). This would suggest her weight is

(a) within\({\bf{1\% }}\)of\({\bf{117}}{\bf{.2}}\;{\bf{lb}}\).

(b) exactly \({\bf{117}}{\bf{.2}}\;{\bf{lb}}\).

(c) somewhere between \({\bf{117}}{\bf{.18}}\;{\bf{lb}}\) and \({\bf{117}}{\bf{.2}}\;{\bf{lb}}\).

(d) somewhere between \({\bf{117}}{\bf{.0}}\) and \({\bf{117}}{\bf{.4}}\;{\bf{lb}}\).

Step by Step Solution

Step 1: Precision and accuracy

Step 2: Digital scale

Most popular questions for Physics Textbooks

Question: A helium balloon, assumed to be a perfect sphere, has a radius of 24.0 cm. At room temperature (20°C), its internal pressure is 1.08 atm. Determine the number of moles of helium in the balloon, and the mass of helium needed to inflate the balloon to these values.

Want to see more solutions like these?

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