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GarryVolchara [31]
4 years ago
5

(The roller coaster train slowly moved away from the station and over the top of a tall hill.

Chemistry
1 answer:
Nonamiya [84]4 years ago
6 0

Answer:

the answer is B "The speed of the train increased as the height of the train decreased"

Explanation:

hope it helps T^T

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a 22.44g sample of iron absorbs 180.8 J of heat, upon which the temperature of the sample increases from 21.1C to 39.0/ what is
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Answer:

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Explanation:

The amount of heat absorbed by the metal is given by:

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ΔT = Final temperature - Initial temperature = 39.0°C - 21.1 °C = 17.9°C

Thus, we calculate the specific heat of iron (Sh) as follows:

Sh = heat/(m x ΔT)  = (180.8 J)/(22.44 g x 17.9°C) = 0.45 J/g.°C

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