Question1the sound level measured in a room by a person

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Reference no: EM13350041

Question1

The sound level measured in a room by a person watching a movie on a home theatre system varies from 65 dB throughout a quiet part to 95 dB during a loud part. In the order of how several times louder is the latter sound?

Question2

Establish for an I section with unequal flanges, where the top flange (a) is half the length of the bottom flange (2a), condition between h and a such that max tension stress is λ x max compression stress where λ is a positive number. The moment is applied such that bottom is in compression. Is any value for λ possible? If not, what range is appropriate?

Question3

You take a running leap off a high-diving platform. You were running at 2.8 m/s and hit water in 1.02s later.

A) How high was platform?

B) How far from edge of the platform do you hit the water?

Reference no: EM13350041

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