Physics, 12.12.2020 23:40 sassy11111515
A sound wave with amplitude Xo is measured by an observer to have an intensity of To when the observer is standing 4.0 meters from the source. Which best describes the amplitude of a sound wave and distance from the source where it will be measured with an intensity of 16/,? O Increase the amplitude to 8x, and stand 2 meters from the source. Increase the amplitude to 4x, and stand 10 meters from the source. O Increase the amplitude to 2x, and stand 2 meters from the source. O Increase the amplitude to 4x, and stand 8 meters from the source.
Answers: 1
Physics, 22.06.2019 00:40, naomicervero
The rigid beam is supported by the three suspender bars. bars ab and ef are made of aluminum and bar cd is made of steel. if each bar has a cross-sectional area of 450 mm2, determine the maximum value of p if the allowable stress is (σallow)st = 200 mpa for the steel and ( σallow)al = 150 mpa for the aluminum. est = 200 gpa and eal = 70 gpa.
Answers: 1
Physics, 22.06.2019 14:30, chelseayazzie16
What distance does a car travel as its speed changes from 0 to 20 m/s in 17 s at constant acceleration?
Answers: 1
A sound wave with amplitude Xo is measured by an observer to have an intensity of To when the observ...
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