9th grade physical science

a train moving west at a velocity of 15m/s is accelerated steadily to 17m/s over a 12 second period what is the acceleration of the train

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asked by cindy
  1. acceleration=change of velocity/time

  2. Calculate the specific heat for a 20 g piece of metal if 30 J of energy is required to raise its temperature by 12.5 K.

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    posted by sarah

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