Refer Figure, the ratio of speed in first two secu to the speed in the next 4 seconds is SA 0 1 2 3 4 5 6 6 (A) 1:2 (C) 2:1 (B) 2:1 (D) 3:1 7.
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Answer:
A boy travels with an average speed of 10 m/s for 20 minutes. How much distance does he travel?
Explanation:
Calculate the new resistance of a conductor having resistance 4 ohm when it is streched so that it's diameter to half as before.
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