A radar pulse returns 2.0 *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) 3.0 *10⁴ m B) 4.5 * 10⁴ m C) 9.0 *10⁴m D) 6.0 * 10⁴ m

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Quizplus · Accepted Answer

The distance traveled by the radar pulse is twice the distance between the radar antenna and the object. The speed of the radar pulse is the speed of light, which is 3.00 F1F1F1S1F1F1F10 10⁸ m/s. The time it takes for the radar pulse to return is 2.0 F1F1F1S1F1F1F10 10⁴ seconds. Therefore, the distance between the radar antenna and the object is:distance = speed * time / 2distance = (3.00 F1F1F1S1F1F1F10 10⁸ m/s) * (2.0 F1F1F1S1F1F1F10 10⁴ s) / 2distance = 3.0 F1F1F1S1F1F1F10 10⁴ m

A Radar Pulse Returns 2