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Lighthouses

December 18, 2009

December 17, 2009

  • in this question i and j are unit vectors?

    mba asked: at 2pm the position vector relative to a lighthouse of ship A is (3i+j)km and its velocity is (-i+5j)kmh-1.at the same time ship B has position vector (-i+4j)km relative to the white house and velocity (2i+3j)kmh-1.Find ,after t hrs. (…)

  • new seven wonders of the world?

    strawberryred asked: are there a new 7 wonders of the world i know the ancient ones…
    Great Pyramid of Giza
    Hanging Gardens of Babylon
    Statue of Zeus at Olympia
    Temple of Artemis
    Mausoleum of Maussollos
    Colossus of Rhodes
    Lighthouse of Alexandria
    but are there a new 7 ?Website content

December 16, 2009

  • triangle trigonometry?

    shatteredfreak asked: My online math class doesnt explain this so can someone please help me! (…)

  • Puerto rico lighthouses?

    jim b asked: Hi I have a question for people that live or no about puerto rico. (…)

December 15, 2009

December 13, 2009

December 11, 2009

December 9, 2009

December 8, 2009

December 7, 2009

December 3, 2009