Answer:
It states a fact about how nature works.
It often changes over time with new experiments and technology.
Answer:
An emission-line spectrum.
Explanation:
The red color observed in the tubes is the emission spectrum of the neon gas, <em>this emission is the energy an atom emits when going from an excited state to a lower one.</em>
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Answer:
alcohol thermometers are used rather than Mercury thermometers in very cold regions because alcohol has a lower freezing point than Mercury.
Explanation:
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➷ Use this equation:
Q = IT
Rearrange for I
I = Q/T
Substitute in the values:
I = 240/3
I = 80
The electric current is 80 amps.
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Yes. An object of large mass is pulled down onto a surface with a greater force than an object of low mass and, as a consequence, there is greater friction between the surface of the heavy object than between the surface of the light object.
