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Explain why a polymer may be more suitable for bottles than glass

Polymers such as PET have various properties such as being flexibility, lighweight and good strenght to weight ratio that allow them to be ergonomically used by consumers. Polymers are also able to be pigmen...
AL
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Explain the possible negative externalities that might arise from the increased use of cars (10 marks)

Negative externalities are caused either by the consumption or the production of a good or service. The use of cars results in the creation a negative externality of consumption, which is defined as an exter...
JW
Answered by Joseph W. • Economics tutor
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How do you write a close analysis for an extract from a Shakespeare play?

Close analysis questions at A Level English require a lot of detailed attention to the text provided. In the extract based questions, examiners are looking for detailed understanding of language and its effe...
HB
Answered by Helena B. • English tutor
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What is the PPF curve and what would cause it to shift?

The PPF (Production Possibility Frontier) curve demonstrates the maximum combination of two goods that an economy can produce simultaneously, given that all resources are used fully and efficiently. (I would...
AD
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Compare and contrast elastic and inelastic collisions

An elastic collision is a collision where there is no loss of kinetic energy. Therefore, it can be said that, since KE is conserved, momentum is conserved. In other words the momentum and total kinetic energ...
MR
Answered by Matt R. • Physics tutor
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