Answer:
y = 0.0199 m
Explanation:
The double slit experiment is described by the expression
d sin θ = m λ
Where d is the separation of the slits, λ the wavelength and m an integer that gives the order of interference.
In this experiment the pattern is registered on a screen.
tan θ = y / x
As the angles are very small
tan θ = sin θ / cos θ = sin θ
We replace
d y / x = m λ
Let's look with the initial data for the distance between the slits
d / x = m λ / y
m = 2
d / x = 2 425 10⁻⁹ / 0.0151
.d / x = 5.629 10⁻⁵ m
Now let's look for the spread if we change the wavelength
λ = 560 nm = 560 10⁻⁹ m
y = m λ 1 (d / x)
Let's calculate
y = 2 560 10⁻⁹ 1/ 5.629 10⁻⁵
y = 1.9897 10⁻² m
y = 0.0199 m
s alluded to in the other answers, salt refers to any ionic compound that doesn't have “oxides” in it. Table salt is sodium chloride. Going down the periodic table, the first column contains lithium, sodium, potassium, rubidium, cesium, and francium. This group (alkali metals) of atoms (and their corresponding positive ions) gets larger in the order shown above. Therefore, their ionic bonds with chloride (or any nonmetal) gets smaller. The trend of their corresponding compounds is a decreasing hardness, decreasing melting point, decreasing boiling point, and decreasing thermal stability. These are the major periodic trends of these corresponding compounds. Other metal ions generally have higher positive charges on them. This makes the ionic bonds considerably larger and you can probably surmise most of their corresponding properties listed above. However, the details of their lattice structures may cause the overall trend to vary.
d. squirrels
Detritivores eat remains. Maggots, flies, worms, fungi, vultures...all detritivores.
Answer:
a) Approximately 0.2066 m
b) 0.00002568443 s
c) Approximately 188.87 s
Explanation:
a) The total energy of the electron = 190GeV
The rest energy of the electron = 0.51 MeV
u = √(299792458² × (1 - 1/37254.902²)) = 299792457.892
β = v/c = 299792457.892/299792458 = 0.99999999964
Δx = √(Δx'²×(1 - β²)) = √(7700²×(1 - 0.99999999964²)) ≈ 0.2066 m
The length of the tube in the electron's frame ≈ 0.2066 m
b) The time in the frame of the electron is given as follows;
Δt' = 7700/299792457.892 = 0.00002568443 s
c) The time in the frame of the tube is given as follows;
1 - β² = (Δt'/Δt)²
Δt = √(Δt'/(1 - β²)) = √(0.00002568443 /(1 - 0.99999999964²)) ≈ 188.87 s.