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You drive on Interstate 10 from San Antonio to Houston, half the time at 57 km/h and the other half at 82 km/h. On the way back you travel half the distance at 57 km/h and the other half at 82 km/h.
(a) Find your average speed from San Antonio to Houston?
km/h
(b)Find your average speed from Houston back to San Antonio?
(c) Find your average speed for the entire trip?
(d) Find your average velocity for the entire trip?
Which one of the following statements regarding internal energy is FALSE?
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