Answer:
Based on the graph, the lepard was at about 15 m at 11 seconds, but since the dot is not directlty at 15 it is safe to just say the lepard was at 14 m at 11 seconds.
Answer: mammals may be relatively better at solving problems than birds.
To solve this problem we apply the concepts related to the Intensity, which is defined as the Power given by the object on unit area. Mathematically this is,
Where,
I = Intensity
P = Power
A = Area
Considering that a whisper is around to , then we have that
Intensity level in
Where,
Threshold intensity level
Therefore the corresponding sound intensity level is 14dB