Answer:
a scale
Explanation:
you use it to weigh things
Explanation:
A basic law of magnetism is that unlike poles attract each other. Two bar magnets can illustrate this. ... A pole of the second is brought, in turn, near each of the two ends of the hanging magnet.
Second Law of Magnetism
The force is in direct proportion to the product of the forces of the pole. The force exists in inverse proportion to the square of the middle distance between the poles. The force is dependent on the specific medium in which the magnets are placed.
Answer:
The energy contained is 5.856 x 10⁻⁶ J
Explanation:
Average energy density of electromagnetic radiation per unit volume is given by the equation;
²
where;
is permittivity of free space
is maximum electric field strength, this can be calculated from the intensity of sun reaching the Earth's surface.
The intensity of sun reaching the Earth is 1350 W/m²
Average energy density of electromagnetic radiation per unit volume;
The energy contained in a 1.30 m³ volume is given by;
E = (4.505 x 10⁻⁶)(1.3)
E = 5.856 x 10⁻⁶ J
Therefore, the energy contained is 5.856 x 10⁻⁶ J
When energy increase the wavelength decreases and vice versa.
Answer:
C
Explanation:
I think c is correct due to reason given by you