Remains unchanged (as it's a solid)
The answer is: An electromagnet is a (Solenoid) with a (metal) core.
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Answer:
What is 2^-3 x 3^-2 as a fraction?
What is (-2)^-3 x (-3)^-2 as a fraction
Explanation:
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By definition, Variable is "(of a quantity) able to assume different numerical values." By this, an example is 4x, as x is an unknown number, but has a value.
Constants are one constant value, unlike Variables.
Electromagnetic waves are waves consists of waves of the electromagnetic field, propagating through the space, carrying electromagnetic radiant energy. Examples includes radio waves, microwaves, infrared, light, ultraviolet, X-rays, and gamma rays. All of these waves form part of the electromagnetic spectrum.
In order from highest to lowest energy, the sections of the EM spectrum are named: gamma rays, X-rays, ultraviolet radiation, visible light, infrared radiation, and radio waves.
Learn more about electromagnetic waves:
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