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Evaluate one study into the stages of attachment. 4 marks.

Schaffer and Emerson's study is true to real life as the children were observed by their mothers in their own home, therefore there was less demand characteristics than there would be if the study was conduc...
GK
Answered by Gemma K. • Psychology tutor
3769 Views

The environment suffers because business has no ethics. Discuss

In some underdeveloped countries stricken with poverty, some companies take short cuts with the environment, such as by burning traditional fuels, using lead petrol and creating rubbish dumps in order to hel...
EJ
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If an alpha particle (Z = 2) of kinetic energy 7 MeV is incident on a gold nucleus (Z = 79), what is its closest distance of approach?

In Rutherford Scattering, an incident particle will reach the closest distance of approach when it is on a collision course head on with the target nucleus. At the closest distance of approach, the alpha par...
RN
Answered by Robert N. • Physics tutor
5164 Views

When is the subjunctive mood used in French?

At A-level, students will be expected to be able to confidently use the subjunctive mood. With a student, I would first discuss with them what the already know about the subjunctive, or any phrases they alre...
LS
Answered by Laura S. • French tutor
2342 Views

Prove that ∑(1/(r^2 -1)) from r=2 to r=n is equal to (3n^2-n-2)/(4n(n+1)) for all natural numbers n>=2.

To prove the above statement we will be using proof by induction as this is the easiest way to prove that the statement holds for all natural numbers n>=2. Firstly, when proving by induction there are thr...
SP
4660 Views