I can't see the diagram, but it would be condensation. (You can use the process of elimination here as well: precipitation is when rain/snow/sleet/hail falls, run off is.. well, run off, and transpiration is about trees)
Answer:
The light used has a wavelenght of 4.51×10^-7 m.
Explanation:
let:
n be the order fringe
Ф be the angle that the light makes
d is the slit spacing of the grating
λ be the wavelength of the light
then, by Bragg's law:
n×λ = d×sin(Ф)
λ = d×sin(Ф)/n
λ = (3.2×10^-4 cm)×sin(25.0°)/3
= 4.51×10^-5 cm
≈ 4.51×10^-7 m
Therefore, the light used has a wavelenght of 4.51×10^-7 m.
Answer:
D. Test a piece of treated iron and a piece of untreated iron under the same conditions.
Explanation:
A controlled experiment is defined as an experiment where the experimenter or the researcher tries to test or experiment his result by changing one variable at a time and keeping the other factors under the same conditions and sees how it effects the result.
The factors which can be changed in an experiment is called its variables.
In the context, testing a piece of treated iron as well as a untreated piece of iron under the same working conditions forms a controlled experiment.
Answer:
Explanation:
According to Gauss's law, the electric flux through the circular plates is defined as the electric field multiplied by its area:
The magnetic field around the varying electric field of the circular plates is given by:
Replacing (1) in (2) and solving for 
:
I think the answer is Helium.
Please tell me if I'm wrong.
