Show all work K 6. A helicopter blade spins at exactly 100 revolutions per minute. Its...

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K 6. A helicopter blade spins at exactly 100 revolutions per minute. Its tip is 5.00 m from the center of rotation. (a) Calculate the average speed of the blade tip in the helicopters frame of reference. (b) What is its average velocity over one revolution? 7. The North American and European continents are moving apart at a rate of about 3 cm/y. At this rate how long will it take them to drift 500 km farther apart than they are at present?

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2 100 S-1 6 0 52.33 s e52.33 m1 5 2

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