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Explain why the housing market is not a perfectly competitive market.

The housing market is not a perfectly competitive market as it fails to fulfil the necessary characteristics of a perfectly competitive market. Firstly, in a perfectly competitive market, all the products ar...
Answered by • Economics tutor
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How is protein digested in the human gut?

Protein digestion begins in the stomach by the secretion of gastric juice, a combination of Hydrochloric acid and the enzyme Pepsin. Food then passes into the duodenum, or small intestine, where pepsin works...
Answered by • Biology tutor
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How does natural selection work ?

A common misunderstanding is to think that evolution results from a species changing to be better adapted to its environment. Evolution is actually the result of environmental pressures selecting different c...
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Answered by Rafaelle B. • Biology tutor
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The ODE mx'' + cx' + kx = 0 is used to model a damped mass-spring system, where m is the mass, c is the damping constant and k is the spring constant. Describe and explain the behaviour of the system for the cases: (a) c^2>4mk; (b) c^2=4mk; (c) c^2<4mk.

In the case c 2 &gt;4mk, the characteristic equation has two distinct real roots; this represents overdamping. The system does not oscillate, and x approaches zero as time approaches infinity.In the case c 2...
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How do I determine whether a system of 3 linear equations is consistent or not?

First, form the system into a 3x3 matrix using the coefficients. Find the determinant of this matrix.If the determinant =/= 0, then the matrix is singular and has a unique solution. The system is consistent ...
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