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Author Question: A pendulum clock has a pendulum shaft made of aluminum which has a coefficient of linear expansion ... (Read 55 times)

nautica902

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on: Jul 29, 2018
A pendulum clock has a pendulum shaft made of aluminum which has a coefficient of linear expansion of 24.0  10-6 K-1. At 22C the period of swing of the pendulum is 1.00 s.
 
  If the temperature is reduced to 5C, how much time does the clock gain or lose in one day? A) It gains 18 s per day.
  B) It loses 18 s per day.
  C) It gains 9.0 s per day.
  D) It loses 9.0 s per day.
  E) It neither gains nor loses time.

Question 2

A circular loop of wire of cross-sectional area 0.12 m2 consists of 200. turns, each carrying 0.50 A. It is placed in a magnetic field of 0.050 T oriented at 30 to the plane of the loop. What torque acts on the loop?
 
  What will be an ideal response?


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nekcihc358

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Reply #1 on: Jul 29, 2018
Answer to Question 1

A

Answer to Question 2

0.52 N-m


nautica902

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Reply 2 on: Jul 29, 2018
YES! Correct, THANKS for helping me on my review

mohan

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Reply 3 on: Yesterday
Thanks for the timely response, appreciate it

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