A) \[2.5\times {{10}^{2}}\]
B) \[5.8\times {{10}^{3}}\]
C) \[8.5\times 1{{0}^{4}}\]
D) \[5.8\times 1{{0}^{6}}~\]
Correct Answer: B
Solution :
[b] the thickness of the book in miles would be: \[0.00.36\]in /1 pages \[\times \]1ft/12 in\[\times \]1 mile/ 5280ft \[\times \]6.022\[\times \]\[{{10}^{23}}\]pages =3.42\[\times \]\[{{10}^{16}}\] mile the distance, in miles travelled by light in one year is: 1.0yr\[\times \]365day/1yr\[\times \]24h /1day \[\times \]3600s/ 1h\[\times \]3.0\[\times \]\[{{10}^{8}}\]m/1s\[\times \]1mile /1609m =5.88\[\times \]\[{{10}^{12}}\] mile the thickness of the book in light-years is: 3.42\[\times {{10}^{16}}\]mile\[\times \]1 light-yr/5.88\[\times \]\[{{10}^{12}}\]mile =5.8\[\times \]\[{{10}^{3}}\]light yr
You need to login to perform this action.
You will be redirected in
3 sec
