Problems with infrared radiation

need 1 problem that is associated with infrared radiation for my physics homework xx
Beth
Asked Nov 21, 2009
it is better idea than i need your physic for my homework; but it is again only your problem, have you try the black-light ? or how many chips in a box ?
a foot in a bank , is it an sonic alarm or infrared radiation ? the best is to add
water-miles when you put your hand under a soap...
frifri
Answered Nov 21, 2009

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