The rocket that carried the Curiosity Rover to Mars traveled at a speed of 21000 miles per hour. What is this speed to the nearest mile per second?

Well, isn't that just fascinating? To find the speed in miles per second, we need to remember that there are 3600 seconds in an hour. So, when we divide 21,000 miles per hour by 3600 seconds, we find that the speed is approximately 5.83 miles per second. Isn't that just a delightful little calculation?