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The speed of the earth around the sun is about 11000km / h, and the speed of sound in the air is about 340m / s
The former is bigger than the latter
The speed of the earth's revolution around the sun is about 1.1 * 10 ^ 5km / h. The faster the sound travels in the air is 330m / s. try to compare the two speeds
1km = 1000m, there are 60 minutes in an hour, 60 seconds in minutes, so there are 3600 seconds in an hour
1 * 10 ^ 5km / h = 110000000 / 3600m / S = 30556m / s
This number is much larger than the sound. So the earth must rotate fast
The speed of the earth's revolution around the sun is about 1.1 * 10 ^ 5km / h, and the faster the sound travels in the air is 1.2 * 10 ^ 3km/
Which is the speed of the earth's revolution greater than that of sound?
10^5>10^3
So the earth goes around the sun faster
Compare the size of scientific counting method
The first is to look at 10 times
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