...to hear the radar echo, how If we transmitted radio signals to Mercury when it was closest to Earth and waited to hear the radar echo, how long would we wait?
How many minutes would we wait?
What's the difference in radii? 149,600,000 km - 57,910,000 km = 91,690,000 km. Double it. 183,380,000 km. Divide by the speed (299,792 km/sec) of the radio signal.
What's the difference in radii? 149,600,000 km - 57,910,000 km = 91,690,000 km. Double it. 183,380,000 km. Divide by the speed (299,792 km/sec) of the radio signal.
What's the difference in radii? 149,600,000 km - 57,910,000 km = 91,690,000 km. Double it. 183,380,000 km. Divide by the speed (299,792 km/sec) of the radio signal.
