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- The speed of light is about 3.00 ✕ 108 m/s. Convert this figure to miles per hour.a) A robin flies a distance of 45 963 cm. How far has it flown in kilometres?(b) What is the speed in metres per second of a car that is travelling at 82 km/h? (c) What is the speed in kilometres per hour of a 27.78 m/s baseball pitch?(d) How many seconds are there in a calendar year, given that a calendar year has 365.24 days in it? T/Iq1ii. answer 1 2 and 3