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$12$: Nuclear Physics

Problem $30\mathrm{.}45$

$17$ of $20$

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Constants

Introduction

A passenger on an airplane flying across the Atlantic receives an extra radiation dose of about $5$ SvSv per hour from cosmic rays. Assume there are no other significant radiation sources besides natural background. Suppose that the natural background exposure in a year is $3$ mSvmSv$.$

Part A

How many hours of flying would it take in one year for a person to double his or her yearly radiation dose?

Express your answer in hours.

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