Physics for Scientists and Engineers: Foundations and Connections
1st Edition
ISBN: 9781133939146
Author: Katz, Debora M.
Publisher: Cengage Learning
expand_more
expand_more
format_list_bulleted
Concept explainers
Question
Chapter 12, Problem 66PQ
To determine
The
Expert Solution & Answer
Trending nowThis is a popular solution!
Students have asked these similar questions
Kendra boards a Ferris wheel at the 3-o'clock position and rides the Ferris wheel for one full rotation. The radius of the Ferris wheel is 12 meters
long and the center of the Ferris wheel is 17 meters above the ground. Imagine an angle with a vertex at the center of the Ferris wheel
subtending the path Kendra travels since the Ferris wheel started rotating. Let 0 represent this angle's measure in radians.
a. Write an expression (in terms of 0) that represents Kendra's varying height above the center of the Ferris wheel (in meters).
Preview
b. Write an expression (in terms of 0) that represents Kendra's varying height above the ground (in meters).
Preview
A CD has diameter of 120 millimeters. When playing audio, the angular speed varies to keep the linear speed constant where the disc is being read. When reading along the outer edge of the disc, the angular speed is about 200 rpm (revolutions per minute). Find the linear speed. Round answer two decimal places.
The linear speed of reading along the outer edge of the disc is ____ meters per second.
A car tire is 60.0 cm in diameter. The car is traveling at a speed of 24.0 m/s.Part A: What is the tire's rotation frequency, in rpm?
Part B: What is the speed of a point at the top edge of the tire?Express your answer twith the appropriate units.
Part C:What is the speed of a point at the bottom edge of the tire?Express your answer with the appropriate units.
Chapter 12 Solutions
Physics for Scientists and Engineers: Foundations and Connections
Ch. 12.1 - Figure 12.5 shows two rotating objects. Indicate...Ch. 12.2 - Prob. 12.2CECh. 12.2 - Prob. 12.3CECh. 12.2 - Prob. 12.4CECh. 12.2 - Prob. 12.5CECh. 12.5 - For each exercise shown in Figure 12.22, how does...Ch. 12 - Often, we model the Moon as a particle in a...Ch. 12 - Suppose a satellite orbits the Earth such that it...Ch. 12 - Prob. 3PQCh. 12 - Prob. 4PQ
Ch. 12 - A ceiling fan is rotating counterclockwise with a...Ch. 12 - As seen from above the Earths North Pole, the...Ch. 12 - A rotating objects angular position is given by...Ch. 12 - A rotating objects angular position is given by...Ch. 12 - Jupiter rotates about its axis once every 9 hours...Ch. 12 - Prob. 10PQCh. 12 - Prob. 11PQCh. 12 - Prob. 12PQCh. 12 - Prob. 13PQCh. 12 - Prob. 14PQCh. 12 - Prob. 15PQCh. 12 - A disk rolls up an inclined plane as shown in...Ch. 12 - Jeff, running outside to play, pushes on a...Ch. 12 - A potters wheel rotating at 240 rev/min is...Ch. 12 - Friction in an old clock causes it to lose 1...Ch. 12 - A wheel starts from rest and in 12.65 s is...Ch. 12 - Prob. 21PQCh. 12 - Starting from rest, a wheel reaches an angular...Ch. 12 - A potters wheel is rotating with an angular...Ch. 12 - The angular speed of a wheel is given by (t) =...Ch. 12 - Prob. 25PQCh. 12 - Prob. 26PQCh. 12 - An electric food processor comes with many...Ch. 12 - Prob. 28PQCh. 12 - A bicyclist is testing a new racing bike on a...Ch. 12 - Prob. 30PQCh. 12 - A disk is initially at rest. A penny is placed on...Ch. 12 - Prob. 32PQCh. 12 - Consider again the two wind turbines in Problem...Ch. 12 - Consider again the two wind turbines in Problem...Ch. 12 - In testing an automobile tire for proper...Ch. 12 - Prob. 36PQCh. 12 - A merry-go-round at a childrens park begins at...Ch. 12 - A wheel rotating at a constant rate of 1850...Ch. 12 - Why are doorknobs placed on the edge opposite the...Ch. 12 - Prob. 40PQCh. 12 - Prob. 41PQCh. 12 - Prob. 42PQCh. 12 - A wheel of inner radius r1 = 15.0 cm and outer...Ch. 12 - A uniform plank 6.0 m long rests on two supports,...Ch. 12 - Prob. 45PQCh. 12 - Prob. 46PQCh. 12 - Prob. 47PQCh. 12 - Prob. 48PQCh. 12 - Prob. 49PQCh. 12 - Prob. 50PQCh. 12 - Prob. 51PQCh. 12 - Given a vector A=4.5+4.5j and a vector B=4.5+4.5j,...Ch. 12 - A square plate with sides 2.0 m in length can...Ch. 12 - Prob. 54PQCh. 12 - A disk with a radius of 4.5 m has a 100-N force...Ch. 12 - Disc jockeys (DJs) use a turntable in applying...Ch. 12 - Prob. 57PQCh. 12 - Prob. 58PQCh. 12 - A wheel initially rotating at 85.0 rev/min...Ch. 12 - Prob. 60PQCh. 12 - A centrifuge used for training astronauts rotating...Ch. 12 - Problems 62 and 63 are paired. 62. C A disk is...Ch. 12 - Prob. 63PQCh. 12 - A potters wheel rotates with an angular...Ch. 12 - Prob. 65PQCh. 12 - Prob. 66PQCh. 12 - Prob. 67PQCh. 12 - Lara is running just outside the circumference of...Ch. 12 - The propeller of an aircraft accelerates from rest...Ch. 12 - A ball rolls to the left along a horizontal...Ch. 12 - Three forces are exerted on the disk shown in...Ch. 12 - Consider the disk in Problem 71. The disks outer...Ch. 12 - Prob. 73PQCh. 12 - Prob. 74PQCh. 12 - Prob. 75PQCh. 12 - Prob. 76PQCh. 12 - Prob. 77PQCh. 12 - Prob. 78PQCh. 12 - Prob. 79PQCh. 12 - Prob. 80PQCh. 12 - If the rod in Problem 79 is in equilibrium, what...Ch. 12 - As a compact disc (CD) spins clockwise as seen...Ch. 12 - A disk-shaped machine part has a diameter of 40.0...Ch. 12 - Prob. 84PQ
Knowledge Booster
Learn more about
Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, physics and related others by exploring similar questions and additional content below.Similar questions
- A pottery wheel spins counter-clockwise with an initial angular speed of 68.7 rpm, as a potter sculpts a clay vase. The potter pushes on the pedal to apply an acceleration of 6.81 rad/s2, and the wheel steadily speeds up to a top angular speed 140 rpm. Use radians as the standard unit for angles.arrow_forwardA wheel rotates through an angle of 324° as it slows down from 87.4 rpm to 18.7 rpm (revolutions per minute). What is the magnitude of the average angular acceleration of the wheel in rad/s2?arrow_forwardA student sets a top spinning clockwise at 218 rad/s. The top gradually slows down as it rotates through an angle of 827 rad before it comes to rest. Clockwise is defined as positive. Use radians as the standard unit for angles. What is the magnitude of the spinning top's angular acceleration?arrow_forward
- A ferris wheel is rotating clockwise at an angular speed of 1.83 rpm. When the ride operator activates the brakes, the ferris wheel steadily slows down to a stop whilst turning through 1.19 revs. Use radians as the standard unit for angles. Initial angular speed is 0.192 rad/s. The angle that the ferris wheel rotates through during the breaking period is 7.48 rad. What is the magnitude of the angular acceleration of the ferris wheel?arrow_forwardCase 1: A DJ starts up her phonograph player. The turntable accelerates uniformly from rest, and takes t1 = 11.6 seconds to get up to its full speed of f1 = 78 revolutions per minute. Case 2: The DJ then changes the speed of the turntable from f1 = 78 to f2 = 120 revolutions per minute. She notices that the turntable rotates exactly n2= 12 times while accelerating uniformly. a. Calculate the magnitude of the angular acceleration of the turntable (in radians/second2) while increasing to 120 RPM (Case 2). b. How long (in seconds) does it take for the turntable to go from f1 = 78 to f2 = 120 RPM?arrow_forwardA cooling fan is turned off when it is running at 930 rev/min. It turns 1,500 revolutions before it comes to a stop. What was the fan's angular acceleration, assumed constant? Express your answer using three significant figures. a=______rads/s^2 Part B How long did it take the fan to come to a complete stop? Express your answer to three significant figures and include the appropriate units. t=_______arrow_forward
- Two bugs, Buzz and Crunchy, are siting on a spinning disk. Buzz is sitting halfway and Crunchy is sitting at the outer edge as shown. The radius of the disk is 1.2 m and the disk is rotating with an angular speed of 20 rpm. What is Crunchy's speed, in m/s? Your answer needs to have 2 significant figures, including the negative sign in your answer if needed. Do not include the positive sign if the answer is positive. No unit is needed in your answer, it is already given in the question statement. Buzz Crunchyarrow_forward9.15 An electric fan is turned off, and its angular velocity decreases uniformly from 420 rev/min to 240 rev/min in 2.60 s . Part A Find the angular acceleration in rev/s2. Express your answer in revolutions per second squared. Part B Find the number of revolutions made by the motor in the 2.60 ss interval. Express your answer as a number of revolutions. Part C How many more seconds are required for the fan to come to rest if the angular acceleration remains constant at the value calculated in part A? Express your answer in seconds.arrow_forwardA Ferris wheel has a 48-foot radius and the center of the Ferris wheel is 54 feet above the ground. The Ferris wheel rotates in the CCW direction at a constant angular speed of 3 radians per minute. Kevin boards the Ferris wheel at the 3-o'clock position and rides the Ferris wheel for many rotations. Let t represent the number of minutes since the ride started. a. Write an expression (in terms of t) to represent the number of radians Kevin has swept out from the 3-o'clock position since the ride started. Preview b. How long does it take for Kevin to complete one full revolution (rotation)? minutes Preview c. Write an expression (in terms of t) to represent Kevin's height above the center of the Ferris wheel (in feet). Preview d. Write a function f that determine's Kevin's height above the ground (in feet) in terms of t. f(t) = Previewarrow_forward
- A Ferris wheel has a radius of 42.4 feet. The bottom of the Ferris wheel sits 0.8 feet above the ground. You board the Ferris wheel at the 6 o'clock position and rotate counter- clockwise. a. Define a function, f that gives your height above the ground (in feet) in terms of the angle of rotation (measured in radians) you have swept out from the 6 o'clock position, a f(a)-42.4sin(a)+43.2 Preview b. Define a function, g, that gives your height above the ground (in feet) in terms of the number of feet you have rotated counter-clockwise from the 6 o'clock position, s. g(s)=43.2+42.2sin(s/42.4) Previewarrow_forwarda) What is the period of rotation of Venus in seconds? (The period of rotation of Venus in hours is 5,832.5 hr.) Answer in seconds (b)What is the angular velocity (in rad/s) of Venus? (Enter the magnitude.) Answer in rad/s (c) Given that Venus has a radius of 6.1 ✕ 106 m at its equator, what is the linear velocity (in m/s) at Venus's surface? (Enter the magnitude of the linear velocity at the equator.) Answer on m/sarrow_forwardThe earth's radius is about 4000 miles. Kampala, the capital of Uganda, and Singapore are both nearly on the equator. The distance between them is 5000 miles as measured along the earth's surface. The flight from Kampala to Singapore takes 7.1 hours. What is the plane's angular velocity relative to the earth's surface? Give your answer in degrees/hr.arrow_forward
arrow_back_ios
SEE MORE QUESTIONS
arrow_forward_ios
Recommended textbooks for you
- University Physics Volume 1PhysicsISBN:9781938168277Author:William Moebs, Samuel J. Ling, Jeff SannyPublisher:OpenStax - Rice University
University Physics Volume 1
Physics
ISBN:9781938168277
Author:William Moebs, Samuel J. Ling, Jeff Sanny
Publisher:OpenStax - Rice University
Moment of Inertia; Author: Physics with Professor Matt Anderson;https://www.youtube.com/watch?v=ZrGhUTeIlWs;License: Standard Youtube License