What property of a wave increases as the wave's energy increases? question 19 options: pitch frequency amplitude wavelength?
2 answers:
The wavelength is the length that it takes a wave to complete one cycle (measured between any two peaks or troughs that are next to each other).
More energetic light has a SHORTER wavelength, so that's not what we want.
But frequency is a measure of how long it takes for a wave to complete one cycle, or how many wavelengths pass in a certain time. We usually use one second, so the unit is
.
Logically, shorter wavelength means that more waves pass in a second. (We deduce that frequency and wavelength are inversely proportional.)
So, more energy = shorter wavelength = greater frequency, so the answer is B.
More energetic light has a SHORTER wavelength, so that's not what we want.
But frequency is a measure of how long it takes for a wave to complete one cycle, or how many wavelengths pass in a certain time. We usually use one second, so the unit is
Logically, shorter wavelength means that more waves pass in a second. (We deduce that frequency and wavelength are inversely proportional.)
So, more energy = shorter wavelength = greater frequency, so the answer is B.
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Answer:
The final temperature of the gas is <em>114.53°C</em>.
Explanation:
Firstly, we calculate the change in internal energy, ΔU from the first law of thermodynamics:
ΔU=Q - W
ΔU = 1180 J - 2020 J = -840 J
Secondly, from the ideal gas law, we calculate the final temperature of the gas, using the change in internal energy:
Then we make the final temperature, T₂, subject of the formula:
Therefore the final temperature of the gas, T₂, is 114.53°C.