1.

A RADAR sends a signal to an aeroplane at a distance 300 km away, with a speed of 3×108 m s−1. After how much time is the signal received back after reflecting from the aeroplane?

Answer»

A RADAR sends a signal to an aeroplane at a distance 300 km away, with a speed of 3×108 m s1. After how much time is the signal received back after reflecting from the aeroplane?



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