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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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How do I write an A* level history essay?

You need to remember that your essay is going to be read. What I mean by this is that your essay must be easy to understand and follow. This will make it easier for the examiner/teacher to give you those top...
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Answered by Jung H. • History 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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Solve 5(x + 3) < 60

For this we must expand the bracket:5(x+3)= 5x+15and then we rearrange for 'x':x&lt;9
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Answered by Othman A. • Maths tutor
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