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Relative to a fixed origin O, the point A has position vector (8i+13j-2k), the point B has position vector (10i+14j-4k). A line l passes through points A and B. Find the vector equation of this line.

The vector equation of any line is composed of the addition of a point on the line and some distance in the direction of the line, in the form y=(x,y,z) +d(x_1, y_1, z_1), where (x,y,z) is any point on the l...
CS
Answered by Carlota S. • Maths tutor
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¿Ser o Estar? When to use ‘SER’ and when to use ‘ESTAR’ in Spanish?

Both ‘SER’ and ‘ESTAR’ are equivalent to the English to be. However, in Spanish, they have very different meanings and usages. In general, ‘ SER ’ is used to describe permanent situations such as: D ate - (e...
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Answered by CHARLOTTE S. • Spanish tutor
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Explain the pathway of MPS following resistance exercise?

The cellular mechanism for increases in MPS post exercise is regulated through the activation of downstream components of mTOR signalling pathway (4EBP1 Thr37/46 and S6K1 Thr389) (Dreyer et al., 2006). Stimu...
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Answered by Christian S. • Biology tutor
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Describe to me the pupillary light reflex, and how the differences in light intensity cause this change.

Pupils can either dilate or constrict in response to changes in light intensity. In very bright light - the eyes constrict - as a protective mechanism In very dull light/dark conditions - the eye dilates - t...
AM
Answered by Aaminah M. • Biology tutor
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Explain and provide evidence for one psychological explanation of schizophrenia in relation to the family environment.

Arguably one of the most dominant psychological explanations of schizophrenia, in relation to the family environment, is the double-bind theory (Bateson et al, 1956). This is when children are consistently p...
JH
Answered by Jack H. • Psychology tutor
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