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How do I analyse a source?

Source questions can be scary, particularly as the short time limit makes you feel that every word has to count. To feel more comfortable when analysing a source, the most important thing to keep in mind is ...
JD
Answered by Joe D. • History tutor
4795 Views

The radius of a circular disc is increasing at a constant rate of 0.003cm/s. Find the rate at which the area is increasing when the radius is 20cm.

The rate at which the area is increasing, dA/dt, can be written with terms we know or can find out easily: dA/dt=dA/dr x dr/dt.Area of a disc, A = (pi)r^2dA/dr=2(pi)rRate of change of radius, dr/dt=0.003cm/s...
HH
Answered by Henry H. • Maths tutor
12638 Views

What precisely is autoregulation in the kidney? Is it solely the ability to vary the diameters of the afferent and efferent arterioles? If so how is this controlled?

Autoregulation is the ability of any vascular bed to maintain its capillary blood supply/perfusion pressure fairly constant despite changes in mean (systemic) arterial pressure. Autoregulatory control must b...
SM
Answered by Steffi M. • Biology tutor
4393 Views

How do I approach an unseen poem?

It is very important to remember when analysising an unseen poem that is NOT PROSE. This means the tools that you apply to the text must take into account the differences between the two. To make sure you di...
TS
5729 Views

What is the difference between por and para?

Early on in your Spanish studies para is used much more than por, but the more advanced that your writing and speaking becomes the more you need to know to distinguish between the two! Para is most commonly ...
DM
Answered by Danielle M. • Spanish tutor
3620 Views