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how can I do no9(a)?

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9. Racing cars, e.g. the formula 1, are very streamlined. However, double deckers are not.
racing car
double decker
(a) Why are racing cars designed to be streamlined?
(1 mark)
(b) Briefly explain why double deckers in general do not require very streamlined shapes?
(1 mark)
(c) Satellites orbit the Earth at a high speed (about 7500 m s- ). Briefly explain why satellites
do not require very streamlined shapes?
(2 marks)

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Subject: Physics, Science

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