Physics, 10.12.2021 18:00 thao6570

Which design of the walls would be most desirable help avoid echoes? A
They should use bumpy walls for all four sides.
B
They should use bumpy walls for only one side.
С
They should use smooth walls for all four sides.
D
They should use smooth walls for only one side.

Answers: 3

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Which design of the walls would be most desirable help avoid echoes? A
They should use bumpy...