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  1. D

    How to calculate the energy of the ice absorbs heat then becomes water

    as the topic asks but, if i wanna know the energy of the 0 Centigrade melt into 0 Centigrade water, how to calculate it? i mean i don't know how to use the equation Q=c*m*t, 'cause the specific heat of water and that of ice are different
  2. D

    What's the millinewtons?

    Is it a unit? or sth?:confused:
  3. D

    What is the NET FORCE?

    Please tell me the definition of NET FORCE Thanks!!!!!:rofl: