A large cubic room within an airplane factory with brick walls, floor and ceiling has a width, depth and height of 213.4 feet. What is the reverberation time for a noise with a frequency of 1000 Hz? Round to two decimal places and express your answer in terms of seconds. Refer to table 10.3 in Salu.

A large cubic room within an airplane factory with brick walls, floor and ceiling has a width, depth and height of 213.4 feet. What is the reverberation time for a noise with a frequency of 1000 Hz? Round to two decimal places and express your answer in terms of seconds. Refer to table 10.3 in Salu.