Answer:
The frequency of the sound wave is 800Hz
The speed of sound in a is about 340m/s.
Velocity = frequency x wavelength
making wavelength the subject formula
wavelength = Velocity/frequency.
wavelength = 340/800
wavelength = 0.425m.
The closer you are to the ground the more accurate you'll be. That's why most snipers are in the "prone" position.
I think it’s c because the other ones are just options not facts
Answer:
b.
Explanation: I do not know much about this but the answer that i think it is was b.
Answer:570.54 N
Explanation:
Given
mass of man=76 kg
As man is standing over inclined building therefore
its weight has two components i.e. sin and cos component
Force perpendicular to inclined wall
F=570.54 N
