Answer:
thank for making me give up on life
Explanation:
I thought the stuff I had was hard wth is even that
Answer:
5.82 mm
Explanation:
length of the track, L = 23 m
Initial temperature, T = 7 °C
final temperature, T' = 30 °C
Coefficient of linear expansion, α = 11 x 10^-6 / °C
Let the increase in length of the track on the hot day is ΔL.
use the formula of the linear expansion
ΔL = L x α x ΔT
ΔL = L x α x (T' - T)
ΔL = 23 x 11 x 10^-6 x (30 - 7)
ΔL = 5.82 x 10^-3 m
ΔL = 5.82 mm
Thus, the increase in the length of the track is 5.82 mm.
1 ) a) increasing its thickness
2) c)potential difference
Answer:
The wavelength is 
Explanation:
From the question we are told that
The wavelength of the red laser is 
The spacing between the fringe is 
The spacing between the fringe for smaller laser point is 
Generally the spacing between the fringe is mathematically represented as
Here 
is the distance to the screen
and d is the distance of the slit separation
Now for both laser red light light and small laser point D and d are same for this experiment
So
=> 
Where 
is the wavelength produced by the small laser pointer
So
=>
The correct choice is C .
Technically, choice-A is the process involved. But it's already been done,
and widely published, and the spectrum of every element is easily available.
For you to take the time and go to the trouble of constructing the spectra
would be like inventing wheels if you want to ride a bicycle.
