Answer:
Relatively small part of the electromagnetic spectrum
Explanation:
Let us take a look at the electromagnetic spectrum
Radio waves
Wavelength = 
Microwaves
Wavelength = 
Infrared waves
Wavelength = 
Visible waves
Wavelength = 
Radio waves
Wavelength = 
Ultraviolet waves
Wavelength = 
X ray waves
Wavelength = 
Gamma ray waves
Wavelength = 
So, it can be seen that the visible light makes up a relatively small part of the electromagnetic spectrum.
A default route is an exceptional kind
of static route because the subnet and network you are identifying
as the target for the traffic that it would equal to all zeros. The characteristic
of a default static route would be it classifies the gateway IP address to
which the router directs all IP packets for which it does not have a knowledge
or static route.
Explanation:
The newton (symbol: N) is the International System of Units (SI) derived unit of force.
Average acceleration is
Change in Velocity/change in time
So you could then do Vf-Vi/Tf-Ti
Which would look like 13m/s-6m/s / 1s-0s
Which then is 7m/s/1s which means the acceleration is 7m/s^2
Answer:
The amplitude is
Explanation:
From the question we are told that
The frequency of when sound is approaching observer is 
The frequency as the move away from observer is 
The time between the pitch are 
Here you are the observer and your friends are the source of the sound
The period is mathematically evaluated as

as it is the time to complete one oscillation which from on highest pitch to the next highest pitch
Now T can also be mathematically represented as

Where
is the angular velocity
=> 
=> 
Now using Doppler Effect,
The source of the sound is approaching the observer
The


Where A is the amplitude
So when the source is moving away from the observer
Here
is the fundamental frequency
Dividing the both equation we have




=> 
