The term that is used to describe the energy needed to start a reaction is B. Activation Energy.
Answer:
2Hz
Explanation:
this is a correct answer.
We can base this on the equation of thermal expansion.
ΔL = L₀αΔT
where
ΔL is the expansion of length upon heating
L₀ is the initial length
α is the coefficient of linear expansion
ΔT is the temperature difference
So, if α for Aluminum is greater than α for Copper, then after heating, aluminum would be longer than copper.
The wavelength<span> can always be determined by </span>measuring<span> the distance between any two corresponding points on adjacent </span>waves<span>. In the case of a longitudinal </span>wave, awavelength measurement<span> is made by </span>measuring<span> the distance from a compression to the next compression or from a rarefaction to the next rarefaction.
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