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1) A signal travels from point A to point B. At point A, the signal . . . 1) A signal travels from point A to point B At point A, the signal power is 100 W At point B, the power is 90 W What is the attenuation, in decibels? 2) What is the length of a bit in a channel with a propagation speed of 2 x 108 m s if the channel bandwidth is 1 Mbps? 10 Mbps? 100 Mbps?
Solved (a) what is the sound intensity level β, in decibels . . . - Chegg The number of decibels increases by 10 for a factor of 10 increase in intensity The general formula for the sound intensity level, in decibels, corresponding to intensity I is B = 10 log (1) dB where Io is a reference intensity
Solved How much noisier are streets where cars travel - Chegg How much noisier are streets where cars travel faster? An article reports noise levels in decibels and average speed in kilometers per hour for a sample of roads The following table presents the results
Solved AP CollegeBoard Unit 2 Progress Check: FRQ Part A A | Chegg. com Question: AP CollegeBoard Unit 2 Progress Check: FRQ Part A A wind turbine uses the power of wind to generate electricity The blades of the turbine make a noise that can be heard at a distance from the turbine At a distance of d = 0 meters from the turbine, the noise level is 105 decibels
Solved Suppose you call your dog with an average intensity - Chegg Question: Suppose you call your dog with an average intensity level of 80 decibels (db) How much more sound energy would you have to put into each call to:a Increase the call to 90 db?b Increase the call to 100 db?