Start answering here:1. A wrench is rotated through 5 revolutions making a torque of 10 Nm and beingstopped by a hand after 20 s. (a) How much work is done by the torque to stop therotating wrench? (b) How much power is done by your hand that provided thetorque?2. A rotating stool chair produces a torque of 20 Nm. When it stopped after 10 s ofcompleting 8 revolutions, (a) how much work is done by the torque to stop therotating wrench? (b) How much power is done by your hand that provided thetorque?

Part (1): Given: The number of revolutions is 5. The torque is 10 N.m. The time interval is 20 s.

Start answering here: 1. A wrench is rotated through 5 revolutions making a torque of 10 Nm and being stopped by a hand after 20 s. (a) How much work is done by the torque to stop the rotating wrench? (b) How much power is done by your hand that provided the torque?

Start answering here: 1. A wrench is rotated through 5 revolutions making a torque of 10 Nm and being stopped by a hand after 20 s. (a) How much work is done by the torque to stop the rotating wrench? (b) How much power is done by your hand that provided the torque?

University Physics Volume 1

18th Edition

ISBN:9781938168277

Author:William Moebs, Samuel J. Ling, Jeff Sanny

Publisher:William Moebs, Samuel J. Ling, Jeff Sanny

Chapter10: Fixed-axis Rotation

Section: Chapter Questions

Problem 10.7CYU: Check Your Understanding The fan blades on a jet engine have a moment of inertia 30.0kgm2 . In 10s,...

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Question

Start answering here:
1. A wrench is rotated through 5 revolutions making a torque of 10 Nm and being
stopped by a hand after 20 s. (a) How much work is done by the torque to stop the
rotating wrench? (b) How much power is done by your hand that provided the
torque?
2. A rotating stool chair produces a torque of 20 Nm. When it stopped after 10 s of
completing 8 revolutions, (a) how much work is done by the torque to stop the
rotating wrench? (b) How much power is done by your hand that provided the
torque?

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