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How does having a rotating plate in a microwave help food to be heated eavenly?

As microwaves are emitted from several different sources in a confined space, the waves are reflected off the internal walls and a interference pattern is formed. There are areas of destructive superstition ...
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Answered by Nassina R. • Physics tutor
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what is the centripetal force?

a force that acts on a body moving in a circular path and is directed towards the centre around which the body is moving.
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Answered by Othman A. • Physics tutor
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What is the equation linking Power, Time, and energy? and Calculate the work done by a cyclist when his power output is 200 W for 1800 seconds?.

The equation linking Power, Time, and Energy is:P=W/tAnd here P= 200 W, and t= 1800 sHence, W= 200*1800 = 360,000 JNB: Remember here, the SI units are important.
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Answered by Othman A. • Physics tutor
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Why do rays of light change direction as they pass from air to a glass block?

Light travels as waves which have a distinct set of properties: a speed, a frequency and a wavelength. These properties are related to each other through the following equation: speed = frequency * wavelengt...
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Answered by Lisa C. • Physics tutor
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Explain the wave - particle duality

If electrons are fired through a thin piece of graphite towards a screen an interference pattern forms.We can explain this by thinking of the electrons as having a wavelength, called the de Broglie wavelengt...
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