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dezoksy [38]
4 years ago
5

Curious George walks west 320 feet, then turns around and walks 80 feet east. What is his resultant

Physics
1 answer:
olasank [31]4 years ago
7 0

Answer:

Resultant displacement is 240 feet west.

Explanation:

Consider that George starts at the origin of coordinates and walks to the left (west) to position 320 feet, then he turns around and walks to the right (east) for 80 feet.So he is now (320 - 80 = 240) feet from the origin but still to the left of it. This means he is 240 feet west from where he started.

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How many kj of heat are needed to completely melt 144 g of titanium metal, given that the metal is at its melting point? the hea
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Anni [7]

Answer:

1.89mol

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The entropy change during free expansion is express as

S_{f}-S_{i}=nRln(\frac{V_{F}}{V_{I}})\\

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since the process is n adiabatic free expansion, the entropy of the system is constant. Hence we can re-write the equation as

S=nRln(\frac{V_{F}}{V_{I}})\\

where the  V_{i}=v\\ and V_{f}=2v+v=3v\\

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R=8.314\\

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3 years ago
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