Answer:
it can cause internal bleeding
It is anatomically impossible to kill someone by breaking the nose and driving the bone end up into the brain.
Because the heat of the fire diffuses into the atmosphere and then we absorb it into our body
Answer:
439 Hz
Explanation:
= Frequency of first wave = 440 Hz
F = Beat frequency = 1 Hz
= Frequency of the instrument
The beat frequency is the difference of the two waves which are interacting with each other

The frequency of the instrument is 439 Hz