A laser produces a beam of light.  All light travels in air at a constant speed of approximately 300 million meters per second. Therefore, a distance can be measured accurately by calculating the time it takes for a laser beam to travel between two points, such as A and B. The beam is timed with precise electronic equipment, calculating and accurately displaying the correct distance. The equation used to calculate the distance is: Distance (in meters) = Time (seconds) (Speed of Light in Air(meters/second) You are interested in experimenting to find out the time in seconds that it takes for the laser beam to travel over a measured distance of 3000 meters. Solve for this problem. Time (in seconds) = Distance (in seconds) / Speed of Light in the Air (m/sec) Time = 3000 / 300,000,000 Time = 0.00001 seconds The time for the laser beam to travel from Point A to Point B is 0.003 seconds. What is the distance between the two points ? Estimate the answer: Less than 100,000  meters Between 100,000 and 500,000 meters Over 500,000 meters