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Explain why diamond cannot conduct electricity but graphite can.

In the atomic structure of diamond, each carbon is bonded to four other carbons using all of its outer electrons, leaving none free to carry a charge. In graphite not all of the electrons are used in bonding...
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Answered by Lucy B. • Chemistry tutor
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Describe the structure of globular proteins.

There are 4 levels of structure associated with a globular protein; primary, secondary, tertiary and quarternary. The primary structure is the organisation of amino acids, bonded by peptide bonds. The second...
CK
Answered by Charlie K. • Biology tutor
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What is price discrimination?

Price discrimination is when the same product is sold in different markets at a different price.It is a way for the firm to maximise its profits from more efficient pricing by charging each producer the maxi...
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‘As a Director how would direct Act 1, Scene 1 in Bertolt Brecht's 'The Good Person Of Szechwan'

'The Good Person of Szechwan’ is a didactic play written by Bertolt Brecht produced in 1943 and published in 1953. The play explores the impossibility of being morally good in a capitalist society, following...
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Answered by Samuel W. • Drama tutor
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A particle P is projected vertically upwards from a point 20m above the ground with velocity 18m/s, no external forces act on it other than gravity. What will its speed be right before it hits the ground? Give your answer to one decimal place.

To start off we should list what we have and what we want to find. The initial velocity u= 18 m/s (taking upwards to be the positive direction). Acceleration a= - 9.8 m/s 2 (negative since gravity acts downw...
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Answered by Jenny N. • Maths tutor
5458 Views