Answer:
D = 2.38 m
Explanation:
This exercise is a diffraction problem where we must be able to separate the license plate numbers, so we must use a criterion to know when two light sources are separated, let's use the Rayleigh criterion, according to this criterion two light sources are separated if The maximum diffraction of a point coincides with the first minimum of the second point, so we can use the diffraction equation for a slit
a sin θ = m λ
Where the first minimum occurs for m = 1, as in these experiments the angle is very small, we can approximate the sine to the angle
θ = λ / a
Also when we use a circular aperture instead of slits, we must use polar coordinates, which introduce a numerical constant
θ = 1.22 λ / D
Where D is the circular tightness
Let's apply this equation to our case
D = 1.22 λ / θ
To calculate the angles let's use trigonometry
tan θ = y / x
θ = tan⁻¹ y / x
θ = tan⁻¹ (4.30 10⁻² / 140 10³)
θ = tan⁻¹ (3.07 10⁻⁷)
θ = 3.07 10⁻⁷ rad
Let's calculate
D = 1.22 600 10⁻⁹ / 3.07 10⁻⁷
D = 2.38 m
Answer:
Vw = 0.98m/s due 67.16° north of east
Explanation:
The distance the canoeist wants to travel is:
And the angle of the destination point is
With this trajectory and the time of 42s, we get the velocity of the canoe respect to ground:
Now we can calculate the velocity of the water:
Answer:
D) biophysics.
Explanation:
Hello,
In this case, since biophysics is the study of physical processes and phenomena happening in living things at molecular scale, which includes cells, tissues and organisms. Both experimental and theoretical techniques are used in order to understand biological and biochemical behaviors inside and outside the cells.
Best regards.
Brown dwarf is the first box
White dwarf is the second box
Black dwarf is the third box
Red giant is the fourth box
And
Black hole is the last box