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6. Angular Velocity The Moon (r = 174x10 m) rotates once on its axis in 27.3 days. Explain: A.What is its period of rotation in seconds? b. What is the frequency of its rotation in rad/s? C.A rock sits on the surface at the Moon's equator. What is its linear speed due to the Moon's rotation? d.Compare this speed with that of a person at the equator due to Earth's rotation. Z. Angular Displacement A movie lasts 2 h. During that time, what is the angular displacement of each of the following? A.the hour hand b.the minute hand c. the second hand 8. Angular Acceleration In the spin cycle of a clothes washer, the drum turns at 635 rev/min. If the lid is opened, the motor is turned off. If the drum requires 8.0s to slow to a stop. Explain: A.what is the angular acceleration of the drum? 9.Angular Displacement Do all parts of the minute hand on a watch such as the one shown in Figu 4, see below, Explain: A.have the same angular displacement? B.Do they move the same linear distance? Figure 4 10.Critical Thinking A CD-ROM has a spiral track that starts 27 cm from the center of the disk and ends 5.5 cm from the center. The Figure 4 See above disk drive must turn the disk so that the line velocity of the track is a constant 1.4 m/s. Find the following: Explain: A.the angular velocity of the disk [in rad/s and rev/min) for the start of the track. b. The disk's angular velocity at the end of the track. c. the disk's angular acceleration if the disk is played for 76 min