document.write( "Question 321027: The estimated masses of a proton and an electron are 1.67 x 10-24 grams and 9.11 x 10-28 grams, respectively. Find the ratio to three significant digits of the mass of the proton to the mass of the electron. \n" ); document.write( "
Algebra.Com's Answer #230124 by ankor@dixie-net.com(22740)\"\" \"About 
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The estimated masses of a proton and an electron are 1.67 x 10-24 grams and 9.11 x 10-28 grams, respectively. Find the ratio to three significant digits of the mass of the proton to the mass of the electron.
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\n" ); document.write( "\"%281.67%2810%5E-24%29%29%2F%289.11%2810%5E-28%29%29\" = \"%281.67%2810%5E%28-24%2B28%29%29%29%2F%289.11%29\" = .183315(10^4) = 1833.15
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\n" ); document.write( "Proton mass is about 1833 times an electron mass
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