7. A record with a diameter of 12 inches rotates at 33 revolutions per minute. Find the angular speed of the record in radians per second. 8. An oscillating fan has blades that measure 8 inches long. If the fan rotates at a speed of 9 revolutions per second, find the linear speed of the ends of the blades in miles per hour. 9. The wheels on Darlene's car have an 11-inch radius. If the wheels are rotating at a rate of 378 rpm, find the linear speed in miles per hour in which she is traveling.

Algebra & Trigonometry with Analytic Geometry
13th Edition
ISBN:9781133382119
Author:Swokowski
Publisher:Swokowski
Chapter6: The Trigonometric Functions
Section6.1: Angles
Problem 30E
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7. A record with a diameter of 12 inches rotates at 33 revolutions per minute. Find the angular
speed of the record in radians per second.
8. An oscillating fan has blades that measure 8 inches long. If the fan rotates at a speed of 9
revolutions per second, find the linear speed of the ends of the blades in miles per hour.
9. The wheels on Darlene's car have an 11-inch radius. If the wheels are rotating at a rate of
378 rpm, find the linear speed in miles per hour in which she is traveling.
Transcribed Image Text:7. A record with a diameter of 12 inches rotates at 33 revolutions per minute. Find the angular speed of the record in radians per second. 8. An oscillating fan has blades that measure 8 inches long. If the fan rotates at a speed of 9 revolutions per second, find the linear speed of the ends of the blades in miles per hour. 9. The wheels on Darlene's car have an 11-inch radius. If the wheels are rotating at a rate of 378 rpm, find the linear speed in miles per hour in which she is traveling.
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