Posted by **Michelle** on Saturday, August 27, 2005 at 7:44pm.

If a ship's flag is 36' above sea level, could it be seen by someone in a building 100' high that was 18 miles away? (please show work)

Yes it is visible. The ship and building are separated by a subtended angle of A = 0.2604 degrees. Between sea level points at each location, the spherical surface of the Earth rises

R (1 - cos A/2) = 0.0102 miles = 54 feet. The is not high enough to block the line of sight between points 100 and 36 feet above sea level. (But it comes close.

## Answer This Question

## Related Questions

- Pre-Calculus - During a storm a ship is being tossed up and down by huge waves. ...
- Physical Geography - 1-if a person's line of vision is at the top of Building ...
- Math - This is a question regarding quadratic equations. I think I have to use ...
- college algebra - on a ship, the distance d that you can see to the horizon is ...
- calculus - A lifeguard was staring at a ship in the distance, and watched the ...
- 11th grade - A lifeguard was staring at a ship in the distance, and watched the ...
- math - The atmospheric pressure P(h) (in pounds per square inch) at a height h (...
- math - there are 5,280 feet in a mile.if a air plane is flying at 35,000 feet ...
- Algebra (MAT 117) - b. Suppose that an object is 100 pounds when it is at sea ...
- Juwayria Highscholl - An obsever is looking out to sea from the top of a ...

More Related Questions