The soil horizon located closest to the surface of the earth's crust would be the O Horizon, which consists of organic deposits (hence the O) and composting plant structures.
Hope that helped =)
Let's think of an example, water boiling to form steam.
When the water boils, it obviously does not have the same shape, and liquids and gases don't have a definite shape, so shape is not the answer.
To force a phase change, water needs energy in the form of heat, so temperature is also not the answer.
The volume is also changed, and gases take up more space than liquids, so volume is also not the answer.
So, after ruling the other three out, the one we're left with is mass, and that is the answer: mass remains constant during a phase change
Don't hesitate to ask further questions!
Hope I helped!! xx
Answer:
Approximately assuming that this transmission line is straight and infinitely long.
Explanation:
Lookup the permeability of free space: .
Consider an infinitely-long straight wire in empty space carrying a current of . At a distance of from this wire, the magnitude of the magnetic field from the wire would be:
.
In this question, it is given that . At a distance of from this wire, the magnitude of the magnetic field from this cable would be:
.
Answer:
3.528×10⁻⁸ V.
Explanation:
Electric Potential: This can be defined as the work done in an electric field in moving a unit charge from infinity to any point. The S.I unit of electric potential is Volt (V) or J/C.
From the question,
V = Fd................ Equation 1
Where V = Electric Potential, F = force experienced by the charge, d = distance.
Given: F = 3.6×10⁻⁴ N, d = 9.8×10⁻⁵ m.
Substitute into equation 1
V = 3.6×10⁻⁴( 9.8×10⁻⁵)
V = 3.528×10⁻⁸ V.