What is the distance between the motion sensor and the object?
the motion sensor acts as a tr...
Physics, 28.01.2020 23:41, ciaotaylor
What is the distance between the motion sensor and the object?
the motion sensor acts as a transmitter, when it sends out pulses, and as a receiver, when it listens for echoes. the delay t between sending a pulse and receiving the echo is equal to 8.8 ms (=0.0088 s). the air temperature id 20 degrees celsius.
Answers: 3
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