A radar pulse returns 5.0 × 10−⁴ seconds after it is sent out,having been reflected by an object.What is the distance between the radar antenna and the object? (c = 3.00 × 10⁸ m/s) A)1.5E+5 m B)2.4E+5 m C)7.5E+4 m D)2.5E+4 m E)4.3E+4 m

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Quizplus · Accepted Answer

The distance can be calculated using the formula distance = (speed of light * time) / 2, because the radar pulse has to travel to the object and back, making the actual distance half the total distance traveled by the pulse. Given time = 5.0 × 10^-14 seconds and speed of light = 3.00 × 10^8 m/s, distance = (3.00 × 10^8 m/s * 5.0 × 10^-14 s) / 2 = 7.5 × 10^4 m or 7.5E+4 m.

A Radar Pulse Returns 5