Generation of heat at one junctuion and cooling at other by passing direct current through a pair of dissimilar material is
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Distinguish between rest and motion.
Mass is a scalar quantity. Give reason.
What is the displacement of the earth when it completes one revolution around the sun?
A car travels 20 Km at a uniform speed of 40 Km/h and the next 20 Km/h at a uniform speed of 60 Km/h. Find its average speed.
Distinguish between speed and velocity.
A train takes 2 hrs to reach station B from station A, and then 3 hrs to return from station B to station A. The distance between the two stations is 200 Km. Find
i The average speed ii The average velocity of the train
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