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What is the Moho?

The Moho is the Mohorovicic Discontinuity. A seismic discontinuity is a boundary between 2 layers with different properties. The Mohorovicic discontinuity (Moho) is the crust - mantle boundary (within the li...
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Answered by Alex K. • Geology tutor
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How do we breathe in?

The scientific term for breathing in is inspiration. The main muscle that helps us to breathe is called the diaphragm; a large, dome shaped muscle that sits below our rib cage. The external intercostal muscl...
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Answered by Hannah E. • Biology tutor
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What is William Paley's watch analogy and how does it attempt to explain creation?

William Paley gave his watch analogy in an attempt to prove that the universe has an intelligent designer. He asked us to imagine that we are walking through the desert and find a watch in the sand. A watch ...
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15 machines work at the same rate. Together, the 15 machines can complete an order in 8 hours. 3 of the machines break down after working for 6 hours. The other machines carry on working until the order is complete. In total, how many hours does EACH

The total number of 'machine hours' needed to complete an order is (15x8) = 120 hoursThe total number of hours worked by the broken machines = (6x3) = 18 hoursTherefore the total number of machine hours need...
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Answered by Ethan R. • Maths tutor
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f is a function such that f(x)=2/(3x-3) Find the inverse function and ff^-1

As demonstrated on whiteboard
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Answered by Kieran M. • Maths tutor
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