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There is a qualitative and a quantitative way to show that the magnetic field does no work on electric charges. The qualitative description requires a picture; essentially, one looks at the circular orbit...

Using the equation W = F * d we know work is equal to the force in the same direction as the distance moved. To find the force in the same direction as the distance we must find the horizontal component. ...

Section 1: The object is moving away from its origin with a constant speed. There is no acceleration as demonstrated by the linear increase in displaceme...

The natural frequency of a glass can be found by tapping it or making it 'sing' (running a wet finger around the top of the glass till it sings a note. If you emit sound waves at this frequency in the dir...

Light from the sun is white. As it passes through the Earth's atmosphere, the different wavelengths of white light (i.e. the visible spectrum of colours) are scattered by gas and dust particles. Colours w...