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Chapter 4 · Indices and Standard Form

MasteryECZ Paper 24 marks

Light travels at 3 × 10⁸ m/s. In a model, the distance from the Sun to the Earth is 4.5 × 10¹¹ m. (a) Calculate the time, in seconds, that light takes to travel from the Sun to the Earth. Give your answer in standard form. (b) Write your answer to (a) in minutes.