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THE NEED FOR SPEED

1.What is the speed of light in miles per second (to the nearest thousand)?
2.How long, to the nearest tenth of a year, does it take light from the Sun to reach our nearest neighbouring star: Proxima Centauri?
3.In miles per hour, how quickly does the Earth orbit the Sun?
4.How long does it take from light from the Sun to travel to Earth?
5.What is the current land speed record?
6.What was the top speed in miles per hour of the first ever train?
7.What is the speed of sound at sea level?
8.At the equator, in miles per hour, what speed of the ground beneath your feet, as a result of the Earth's rotation?
9.What speed in miles per hour must a rocket attain to escape Earth's gravity?
10.On average who's hearts beat faster; men or women?