From the theory we know that:
c = λ / T
f = 1 / T
Where:
c = 3.
/ m (the speed of light)
λ is the wavelengh (in meters)
T is the period (in seconds)
f is the frequency (in Hz)
We were told that:
f = 7.30 . 
And we want to find out the value of λ.
c = λ / T
c = λ . 1/T
Swaping 1/T = f
c = λ . f
λ = c / f
λ = 3 . / 7.30 .
λ = 4.12 
m
Response: 4.12 m = 412 nm
:-)
Answer:
A theory is a system of ideas intended to explain something, and a hypothesis is an educated guess.
Explanation: Hope this Helps! :)
If the type of friction is sliding friction, it may be increased by increasing the roughness of the surface and may be decreased by smoothing the surface or applying a lubricant.
Answer:
The angular displacement of the wheel is 45 radians
Explanation:
Given;
initial angular velocity, ω₀ = 20 rad/s
final angular velocity, ωf = 10 rad/s
time interval, t = 5
Angular acceleration is calculated as;
|α| = 2 rad/s²
Angular displacement is calculated as;
Therefore, the angular displacement of the wheel is 45 radians
Answer:
Total bandwidth required = 158.2 KHz
Explanation:
given data:
number of channel 30
bandwidth of each channel is 4.5 KHz
bandwidth of guard band 0.8 KHz
According to the given information, first guard band and the guard band after last channel should be ignored, therefore we have total number of 29 guard band.
As per data, we can calculate total bandwidth required
total bandwidth = 30*4.5 + 29*0.8
total bandwidth required = 158.2 KHz
