11. A small button placed on a horizontal, rotating platform with diameter 0.320 m will revolve with the platform when it is brought up to a rotational speed of 37.0 rev/min, provided the button is no more than 0.140 m from the axis. to in What is the coefficient of static friction between the button and the platform? lda How far from the axis can the button be placed, without slipping, if the platform rotates at 60.0 rev/min? 13. A 5.0-m-diameter merry-go-round is turning with a 4.2 s period. What is the speed of a child on the rim? 14. The blade on a table saw spins at 3800 rpm. Its diameter is 25.0 cm. What is the speed of a tooth on the edge of the blade in m/s? What is the speed of a tooth on the edge of the blade in mph? 15. An old-fashioned LP record rotates at 33 rpm. What is its frequency in rev/s? What is its period, in seconds? Imoshod e i so s W lda 16. A typical hard disk in a computer spins at 10000 rpm. What is the frequency, in rev/s? What is the period, in seconds? 17. A CD-ROM drive in a computer spins the 12-cm-diameter disks at 7300 rpm. What is a disk's period in s? What is a disk's frequency in rev/s? 18. The horse on a carousel is 4.1 m from the central axis. If the carousel rotates at 0.14 rev/s, how long does it take the horse to go around twice? How fast is a child on the horse going (in m/s)? 19. The radius of the earth's very nearly circular orbit around the sun is 1.50x10"m. Find the magnitude of the earth's velocity as it travels around the sun. Assume a year of 365 days. Find the magnitude of the earth's centripetal acceleration as it travels around the sun. Assume a year of 365 days. Jarger than they appear, and despite their apparently lazy motion, the speed of wind speed. A turbine has blades 54 m long
11. A small button placed on a horizontal, rotating platform with diameter 0.320 m will revolve with the platform when it is brought up to a rotational speed of 37.0 rev/min, provided the button is no more than 0.140 m from the axis. to in What is the coefficient of static friction between the button and the platform? lda How far from the axis can the button be placed, without slipping, if the platform rotates at 60.0 rev/min? 13. A 5.0-m-diameter merry-go-round is turning with a 4.2 s period. What is the speed of a child on the rim? 14. The blade on a table saw spins at 3800 rpm. Its diameter is 25.0 cm. What is the speed of a tooth on the edge of the blade in m/s? What is the speed of a tooth on the edge of the blade in mph? 15. An old-fashioned LP record rotates at 33 rpm. What is its frequency in rev/s? What is its period, in seconds? Imoshod e i so s W lda 16. A typical hard disk in a computer spins at 10000 rpm. What is the frequency, in rev/s? What is the period, in seconds? 17. A CD-ROM drive in a computer spins the 12-cm-diameter disks at 7300 rpm. What is a disk's period in s? What is a disk's frequency in rev/s? 18. The horse on a carousel is 4.1 m from the central axis. If the carousel rotates at 0.14 rev/s, how long does it take the horse to go around twice? How fast is a child on the horse going (in m/s)? 19. The radius of the earth's very nearly circular orbit around the sun is 1.50x10"m. Find the magnitude of the earth's velocity as it travels around the sun. Assume a year of 365 days. Find the magnitude of the earth's centripetal acceleration as it travels around the sun. Assume a year of 365 days. Jarger than they appear, and despite their apparently lazy motion, the speed of wind speed. A turbine has blades 54 m long
College Physics
11th Edition
ISBN:9781305952300
Author:Raymond A. Serway, Chris Vuille
Publisher:Raymond A. Serway, Chris Vuille
Chapter1: Units, Trigonometry. And Vectors
Section: Chapter Questions
Problem 1CQ: Estimate the order of magnitude of the length, in meters, of each of the following; (a) a mouse, (b)...
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1. A small button placed on a horizontal rotating platform with a diameter of 0.320 m will revolve with the platform when it is brought up to a rotational speed of 37.0 rev/min, provided the button is no more than 0.140 m from the axis.
- What is the coefficient of static friction between the button and the platform?
- How far from the axis can the button be placed, without slipping, if the platform rotates at 60.0 rev/min?
13. A 5.00-m-diameter merry-go-round is turning with a 4.00 s period.
- What is the speed of a child on the rim?
14. The blade on a table saw spins at 3800 rpm. Its diameter is 25.0 cm.
- What is the speed of a tooth on the edge of the blade, in m/s?
- What is the speed of a tooth on the edge of the blade, in mph?
15. An old-fashioned LP record rotates at 33 1/3 rpm.
- What is its frequency, in rev/s?
- What is its period, in seconds?
16. A typical hard disk in a computer spins at 10,000 rpm.
- What is the frequency, in rev/s?
- What is the period, in seconds?
17. A CD-ROM drive in a computer spins the 12-cm-diameter disks at 7300 rpm.
- What is a disk's period in s?
- What is a disk's frequency in rev/s?
18. The horse on a carousel is 4.1 m from the central axis. If the carousel rotates at 0.14 rev/s, how fast does it take the horse to go all the way around the sun, assuming a year of 365 days. Assume a year of 365 days.
- How fast is a child on the horse going, in m/s?
19. The radius of the earth's very nearly circular orbit around the sun is 1.50 x 10^11 m. Find the magnitude of the earth's centripetal acceleration as it travels around the sun, assuming a year of 365 days.
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