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Lesechka [4]
3 years ago
13

A train travels 2km in 100 seconds. find the velocity of the train

Physics
1 answer:
AVprozaik [17]3 years ago
3 0

Answer:

20m/s = 72km/h

Explanation:

change 2km=2000m

The speed of the train is

v.t=S <=> v=S/t=2000/100=20 m/s

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When water is boiled under a pressure of 2.00atm, the heat of vaporization is 2.20×106J/kg and the boiling point is 120∘C. At th
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Answer:

2033219.05 J

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V = Volume

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Work done is 166780.95 J

Change in internal energy is given by

\Delta U=Q-W

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The increase in internal energy of the water is 2033219.05 J

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