A 4 gram piece of Zinc, with a specific heat of .388J/gC, is heated in a Bunsen Flame for 20 seconds. The zinc is then placed in a 45 ml water calorimeter. The calorimeter increased its temperature from 22.0 degrees Celsius to 23.2 degrees Celsius. What was the initial temperature of the metal after heating?

depends on what you mean by "group." for order, it would be coleoptera (beetles). for class, it would be insecta (insects). for phylum, it would be the arthropoda (animals with jointed exoskeletons).

explanation:

acceleration = (change in speed) / (time for the change)

change in speed = (20-120)= -100 m/s.

1.5 min = 90 sec

acceleration = -100/90 = -1.11 m/s^2.

we don't care about the 150kg or the 2,500 meters. they don't make any difference.

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