When it is closest to earth, venus is ~90million km away. How long does it take a radar signal to go out to venus and return?
Please help :D Im not sure if i need a formula but i cant find anything about it in my text book.
2007-10-11 08:46:44 · 5 answers · asked by kelly 2 in Science & Mathematics ➔ Astronomy & Space
Radio signals travel at about 300,000,000 meters per second or 300,000 km/sec. 90,000,000/300,000 equals 300 seconds or 5 minutes. Double that for round trip equals 10 minutes.
2007-10-11 08:53:39 · answer #1 · answered by Joseph F 5 · 1⤊ 0⤋
Just FYI, the closest approach of Venus is more like 42 million km.
2007-10-11 11:45:00 · answer #2 · answered by Choose a bloody best answer. It's not hard. 7 · 1⤊ 0⤋
Radar travels at the speed of light, c = 300,000 km/s. The distance is twice 90,000,000 km, so
t = s/v = 2(90,000,000) / 300,000
t = ~ 600 s
2007-10-11 08:54:53 · answer #3 · answered by anobium625 6 · 1⤊ 0⤋
the earth is about 98 million miles from the sun, so venus should be a lot closer
2007-10-11 10:04:13 · answer #4 · answered by brandon 5 · 1⤊ 1⤋
the radar signals travel at the ligth speed so it is aprox. 299,792,458 m/s so to travel 90 million km need a time t that is t=d/v=90 million km/299,792,458=90 000 000 000/299,792,458=300.2 sec
2007-10-11 08:55:30 · answer #5 · answered by elcaves 2 · 0⤊ 1⤋