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Explain the processes of Physical Coastal erosion and give examples of the land-forms it can produce

Wave pounding is an erosion process which involves the force of the wave hitting rock and wearing it down, this particularly occurs in soft rock such as sandstone. Hydraulic action may also work with this to...
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Answered by Megan B. • Geography tutor
5497 Views

What is the power dissipated by a 12 Ohm resistor when 2A of current run through it?

We know P=IV and that V=IR. Therefore as we are only given I and R in the question we can make the substitution for V so that P=I 2 R. By plugging in the numbers we get: P=2 2 x 12= 48W (W=Watts, unit of Power)
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Answered by Ollie T. • Physics tutor
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expand y=(x+1)(x+2) and find what are the coordinates for x intercepts?

use the smile technique
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Answered by Sen H. • Maths tutor
3109 Views

Simplify 4^2 x 2^4

4 2 = 2 2x2 =2 4 2 4 x2 4 = 2 8 Explanation: In order to simplify powers you need to get the same base number. In order to get this problem into the simplest form you will need to use 2 as the base number. 4...
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Answered by Jack N. • Maths tutor
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Explain diffusion?

This is the net passive movement of molecules down the concentration gradient from an area of high concentration to an area of low er concentration, through a partially permeable membrane.
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Answered by Jack N. • Biology tutor
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