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Physics 8 Online
OpenStudy (anonymous):

An inner city school has decided that they want to install a new bell on the outside of their school. This will be used to call students in for lunch etc. Which of the following criteria would NOT be appropriate for evaluating a new bell? a. The color of the bell b. How efficient is it? c. Is it waterproof? d. Are there lots of people that live near by that may be affected?

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