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What is the difference between a divergent and convergent plate boundary

Think of the divergent film! Trish (a divergent) moves away from the faction system. Divergent plates do the same! They move away from each other, whereas convergent plate boundaries move towards one another...
WM
Answered by Will M. • Geography tutor
6383 Views

Calculate the pH of the buffer solution resulting from mixing 250 cm^3 of 0.3 moldm^-3 ethanoic acid with 250cm^3 of 0.2 moldm^-3 sodium hydroxide. The Ka of ethanoic acid is 1.8 x 10^-5.

As an acid is being added to a base, you first need to calculate what is left after they react. Without doing any calculations, we can already see that the acid is in excess as both solutions have the same v...
TD
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A cylinder has dimensions: diameter = 4x+2 and height = 4. Work out the volume of this cylinder. Give your answer in terms of x

The volume of a cylinder = (pi).r 2 .hAs the diameter is given in the question, we need to halve it to get the radius --> r = (4x+2)/2 = 2x+1This means the volume of the cylinder = (pi).(2x+1) 2 .4 First ...
BG
Answered by Ben G. • Maths tutor
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How can I determine the characteristics of a curve on an x-y set of axis (eg. points of intersection, stationary points, area under graph)?

To determine the characteristics of a graph, we need to examine what we are been shown in the question. Below is an exam style question:By looking at both the graph and the equation, we can see that in the p...
EC
Answered by Ethan C. • Maths tutor
4351 Views

How De Broglie's wavelength found/derived?

Through energy conservation, we can determine that no energy is lost and thereforeKinetic energy = Electrical energyAs a result the following equation is present where both sides represent energy:(m*(v^2))/2...
AA
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