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The Doppler Shift describes a change in frequency of a wave that an observer sees when moving relative to the source of the waves.
A good example of the Doppler Shift is the change in pitch (how hi...
According to the particle theory of light, hf=φ+KEmax, so along with the minimum amount of energy required, there is a minimum frequency as well, φ= hfo. Thus, the incident photon must have a f...
This question uses the equations of motion, commonly referred to as the SUVAT equations. We will need to consider the horizontal and vertical components of motion separately. As the vertical component det...
A convection current is the way that heat is transferred throughout a fluid. By fluid, we mean a liquid or a gas, where the molecules are free to move. Imagine a cup of water being heated from the bottom....
The doppler effect is the change in frequency and wavelength of waves coming from a wave source moving relative to you. If a wavesource is stationary then the waves in all directions all have the same fre...
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