9. Tectonic plates are large segments of the Earth's crust that move slowly. Suppose that one such...

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9. Tectonic plates are large segments of the Earth's crust that move slowly. Suppose that one such plate has an average speed of 4.0 cm/year.

(a) What distance does it move in 1 s at this speed?

(b) What is its speed in kilometers per million years?

10. A good-quality measuring tape can be off by 0.50 cm over a distance of 20 m. What is its percent uncertainty?

11. 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 helicopter's frame of reference.

(b) What is its average velocity over one revolution?

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Posted Date: Apr 22, 2024 02:58 AM

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9. Tectonic plates are large segments of the Earth's crust that move slowly. Suppose that one such...

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