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The cognitive explanation of depression suggests that negative thoughts and belief's cause depression. Beck's cognitive triad suggests that there are three focuses of negative thinking: the self (I am st...

A main concern for both plants and animals is to hold onto as much water as possible and prevent evaporation wherever possible, which you should keep in mind when trying to recall what kinds of features t...

Let u=2a+3, therefore du/da=2. Let y=u^5/2, therefore dy/du=5/2(u)^3/2 Hence dy/da=du/da*dy/du=2(5/2)*u^3/2=5u^3/2

So for this question you would need to know the formula for the area of a circle. This is Area = πr^2. In this formula, r = the radius. We are given the radius in the question. So all we need to do is put...

We start off by working out all the forces acting on the person and they're parachute, because they are joined together they can be considered as one object. We know the wind resistance and the only other...