A student performs the following experiment in order to calculate specific
latent heat of fusion of ice. He takes a calorimeter of mass 5.0g containing
50g of water at 30ºC. Into this calorimeter he adds 5g of dry ice at 0ºC.
When all the ice melts the final tempera...

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Prove that the vectors A 3i 2j 2k    ˆ ˆ ˆ  , B i 3j 4k     ˆ ˆ ˆ  and C 4i j 6k    ˆ ˆ ˆ  can from a triangle.