Uhhhh... I have know idea?! Look it up tho
Answer:
Sound Intensity at microphone's position is 
The amount of energy impinging on the microphone is 
Solution:
As per the question:
Emitted Sound Power, 
Area of the microphone, 
Distance of microphone from the speaker, d = 52.0 m
Now, the intensity of sound, 
at a distance away from the souce of sound follows law of inverse square and is given as:
Now, the amount of sound energy impinging on the microphone is calculated as:
If be the Incident Energy/
Then
The amount of energy incident per 1.00 
is:
Answer:
Chlorine is a respiratory irritant. The gas irritates the mucus membranes and the liquid burns the skin. As little as 3.5 ppm can be detected as an odor, and 1000 ppm is likely to be fatal after a few deep breaths. In fact, chlorine was used as a war gas in 1915.
Explanation:
The answer would be C. The gravitational force between two bodies however it is too small that it is overshadowed by that of earth. Gravitational force is the weakest force of all. Each body with a mass exerts a gravitational force onto each other but this value is so small that it can be neglected.
