Asked by Jane
If you are in a hot-air balloon at a height of 100 meters, you can expect to see ____ km. Round your answer to the nearest kilometer and enter only the number.
Answers
Answered by
Steve
if earth radius is r meters, and distance to horizon is d,
r^2 + d^2 = (r+100)^2
plug in r and solve for d.
r^2 + d^2 = (r+100)^2
plug in r and solve for d.
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