Physics Help Forum odd sun problem

 Special and General Relativity Special and General Relativity Physics Help Forum

 Aug 30th 2008, 11:36 PM #1 Junior Member   Join Date: Aug 2008 Posts: 1 odd sun problem i was surprised to find this problem in my hwk since it seems to be more of a geometry problem almost... the sun sets, fully disappearing over the horizon as you lie on the beach, your eyes 10 cm above the sand. you immediately jump up, your eyes now 130 cm above the sand, and you can again see the top of the sun. If you count the number of seconds (=t) until the sun fully disappears again, you can estimate the radius of the Earth. Use radius of earth, 6.38*10^3 km, to calculate the time (t).
Sep 3rd 2008, 05:49 AM   #2
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Join Date: Apr 2008
Location: Zeitgeist
Posts: 69
 Originally Posted by omegabustr i was surprised to find this problem in my hwk since it seems to be more of a geometry problem almost... the sun sets, fully disappearing over the horizon as you lie on the beach, your eyes 10 cm above the sand. you immediately jump up, your eyes now 130 cm above the sand, and you can again see the top of the sun. If you count the number of seconds (=t) until the sun fully disappears again, you can estimate the radius of the Earth. Use radius of earth, 6.38*10^3 km, to calculate the time (t).
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