Total # Posts: 104
Radio amateurs are permitted to communicate on the "10 meter band." What frequency of radio waves corresponds to a wavelengthy of 20m? (The speed of radio wave is 3.00 x 10(8)m/s). Can you help me with setting up the formula? frequency = (wave speed)/(wavelength) ...
April 10, 2007
riddle - please help
My child was given this riddle as a homework assignment. We are stumped. Q: "The skydiver had fries and a milkshake,why was he nervous?" A: "Because he was _ _(2lett.word) _ _(2lett.word) _ _ _(3lett.word) _ _ _(3lett.word). " Unscramble the letters below ...
January 21, 2007
using digits 1-9 only once, multiply a 3 digit by a 2 digit number and get a 4 digit result 12*345=4140? looks ok to me. the answer would have to be 6789 or some order of those digits if you used the others in the question. digits 1-9 used only once, no zeroes. The digits can ...
November 28, 2006