math 15

find the minimum height above the surface of the earth so that the pilot at point a can see an object on the horizon at c 125 miles away. assume the diameter of the earth to be 8000 miles.

  1. 0
  2. 0
  3. 18
asked by ellen
  1. Draw a diagram, with a line from the horizon to the pilot.

    If the pilot is at height h miles, then

    (8000+h)^2 = 125^2 + 8000^2

    1. 0
    2. 0
    posted by Steve
  2. 2 miles

    1. 0
    2. 0
    posted by Anonymous

Respond to this Question

First Name

Your Response

Similar Questions

  1. college

    Find the minimum initial speed of a projectile in order for it to reach a height of 2039 km above the surface of the earth.

    asked by Anonymous on April 29, 2010
  2. Physics

    Find the minimum initial speed of a projectile in order for it to reach a height of 2022 km above the surface of the earth.

    asked by Rebecca on November 12, 2015
  3. Physical Science

    Many people mistakenly believe that the astronauts who orbit Earth are "above gravity." Earth's mass is 6×1024kg, and its radius is 6.38×106m (6380 km). Use the inverse-square law to find a height above Earth's surface at that

    asked by Hannah on June 22, 2016
  4. physics

    Find the distance (measured in earth radii, RE) from the center of the earth to a point outside the earth where the acceleration of gravity due to the earth is exactly one ninth of its value on the surface of the earth.

    asked by Muhammad on April 25, 2010
  5. Calculus

    A spacecraft is in an elliptical orbit around the earth. At the time t=0 hours, it is at its apogee (highest point), d=1000 km above the earth's surface. It is at its perigee (lowest point) d=100 km above the surface 50 minutes

    asked by Nick on September 23, 2014
  6. Science

    An artificial satellite circles around the earth at the height where the gravitational force is one fourth of that at earth's surface. If the earth's radius is R the height of the satellite above the surface of the earth is?

    asked by Shubham on January 31, 2016
  7. Math Application

    A space camera circles the Earth at a height of h miles above the surface. Suppose that d distance, IN MILES, on the surface of the Earth can be seen from the camera. (a) Find an equation that relates d and h. (b) If d is to be

    asked by Javier on February 22, 2008
  8. Physics

    a. 2 objects each of mass 200 kg and 500 kg are separated by 50 cm. Where body of mass 20 kg should be placed so that the resultant force of gravity experienced by objects equal to zero? b. launched a rocket leaving Earth. Known

    asked by steffy Jane on May 6, 2013
  9. physic

    A satellite used in a cellular telephone network has a mass of 2010kg and is in a circular orbit at a height of 770km above the surface of the earthTake the gravitational constant to be G = 6.67×10−11N⋅m2/kg2 , the mass of

    asked by cuzer on July 11, 2013
  10. math

    looking at a square pyramid, if the size of the base remains the same and the height of the pyramid varies what are the minimum surface area and minimum volume the pyramid can have? The base is showing 2 in and the line on the

    asked by m on January 5, 2011

More Similar Questions