• Part A ding wheel 0.33 m in diameter rotates at 2700 rpm . Calculate its angular velocity in rad/s. Express your answer using three significant figures. ? rad/s Submit Request Answer Part B What is the linear speed of a point on the edge of the grinding wheel? Express your answer to two significant figures and include the appropriate units. HÀ ? Value Units Submit Request Answer Part C What is the acceleration of a point on the edge of the grinding wheel? Express your answer to two significant figures and include the appropriate units.

• Part A ding wheel 0.33 m in diameter rotates at 2700 rpm . Calculate its angular velocity in rad/s. Express your answer using three significant figures. ? rad/s Submit Request Answer Part B What is the linear speed of a point on the edge of the grinding wheel? Express your answer to two significant figures and include the appropriate units. HÀ ? Value Units Submit Request Answer Part C What is the acceleration of a point on the edge of the grinding wheel? Express your answer to two significant figures and include the appropriate units.

College Physics

1st Edition

ISBN:9781938168000

Author:Paul Peter Urone, Roger Hinrichs

Publisher:Paul Peter Urone, Roger Hinrichs

Chapter6: Uniform Circular Motion And Gravitation

Section: Chapter Questions

Problem 16PE: Olympic ice skaters are able to spin at about 5 rev/s. (a) What is their angular velocity in radians...

See similar textbooks

Similar questions

At its peak, a tornado is 60.0 m in diameter and carries 500 km/h winds. What is its angular velocity in revolutions per second?
A wind turbine is rotating conterclockwise at 0.5 rev/s and slows to a stop in 10 s. Its blades are 20 m in length. (a) What is the angular acceleration of the turbine? (b) What is the centripetal acceleration of the tip fo the blades at t=0s ? (c) What is the magnitude and direction of the total linear acceleration of the tip of the blades at t=0s ?
Olympic ice skaters are able to spin at about 5 rev/s. (a) What is their angular velocity in radians per second? (b) What is the centripetal acceleration of the skater's nose if it is 0.120 m from the axis of rotation? (c) An exceptional skater named Dick Button was able to spin much faster in the 1950s than anyone since—at about 9 rev/s. What was the centripetal acceleration of the tip of his nose, assuming it is at 0.120 m radius? (d) Comment on the magnitudes of the accelerations found. It is reputed that Button ruptured small blood vessels during his spins.
A torque of 50.0Nm is applied to a grinding wheel (l=20.0kgm2) for 20 s. (a) If it starts from rest, what is the angular velocity of the grinding wheel after the troque is removed? (b) Through what angle does the wheel move while the torque is applied?
(a) What is the angular speed of the second hand of a clock? (b) What is the direction of as you view a clock hanging on a vertical wall? (c) What is the magnitude of the angular acceleration vector of the second hand?
For each of the following problems, find the angular velocity, in radians per minute, associ-ated with the given revolutions per minute (rpm). 8.5 rpm
Using the equations attached solve the following: 1.What is the average angular velocity between t = 2.0 s and t=3.1 s ? Express your answer using two significant figures. 2.What is the average angular acceleration between t = 2.0 s and t =3.1 s ? Express your answer using two significant figures.
Determine the moment at midspan (in kip-ft to one decimal) for the following beam. Use P1 = 8.5 kip, P2 = 3.9 kip, and L = 30 ft. This problem is intended for use with tables. Pz Pz to 느
A merry go round with a radius of 6.0 meters rotates at a speed of 8 revolutions per minute (rpm). 1. Calculate the angular speed in rad/s?2. Find the tangential velocity of the merry go round? 3. If the merry go round stops after one minute, what is its angular acceleration?
A high-speed drill reaches 2200 rpmrpm in 0.51 s. a) What is the drill's angular acceleration? Express your answer in radians per second squared. b) Through how many revolutions does it turn during this first 0.51 ss? Express your answer in revolutions.
Member AB has the angular velocity WAB = 4.5 rad/s and angular acceleration a AB = 6 rad/s². (Figure 1) Figure A 200 mm 300 mm @AB a AB B 500 mm 0= 60° 1 of 1 Determine the angular acceleration of member CD at the instant shown measured counterclockwise. Express your answer using three significant figures. Enter positive value if the angular acceleration is counterclockwise and negative value if the angular acceleration is clockwise. aCD = Submit vec Π ΑΣΦ ↓↑ 325 Previous Answers Request Answer X Incorrect; Try Again < Return to Assignment Review Provide Feedback ? rad/s²
A cylinder 0.190 m in diameter rotates in a lathe at 690 rpm What is the tangential speed of the surface of the cylinder? Express your answer in meters per second. 阳 AZ中 m/s Submit Request Answer Part B The proper tangential speed for machining cast iron is about 0.540 m/s. At how many revolutions per minute should a piece of stock 0.0800 m in diameter be rotated in a lathe to produce this tangential speed? Express your answer in revolutions per minute. ΑΣΦ rpm Submit Request Answer