Answer:
18
Explanation:
<em>V = voltage
</em>
<em>I = current </em>
<em>R = resistance</em>
V = IR is the equation to find out the Voltage of an item so if we move around the equation so we are trying to resistance it would become R = V/I.
V = IR
R = V/I
R = 9/0.5
<u>R = </u><em><u>18</u></em>
Velocity = frequency x wavelength
=
x 1.2
= 0.6 m/s
The correct option is B.
All objects emit electromagnetic radiation and the amount of radiation emitted at each wavelength depend on the temperature of the object. This observation is described by Wien's law, which states that the black body radiation curve for different temperatures peaks at a wavelength that is inversely proportional to the temperature.
Backlighting is used to create silhouettes
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