From the top of a bridge that is 50 m high, two boats can be seen anchored in a marina. one boat is anchored in the direction s20°w, and its angle of depression is 40°. the other boat is anchored in the direction s60°e, and its angle of depression is 30°. determine the distance between the two boat

Explanation:

Given

height of bridge is

First Boat is at an angle of w.r.t to x axis

Second boat is at an angle of w.r.t to x axis

from Diagram

In triangle ABO

In triangle ACO

where and are the distance of boat from origin O

Position vector of boat 1 w.r.t origin is

Position vector of boat 2 w.r.t origin is

Position of

Distance between them is

what experimental evidence led scientists to change from the previous model to this one?

a few of the positive particles aimed at a gold foil seemed to bounce back.

the colors of light emitted from heated atoms had very specific energies.

experiments with water vapor showed that elements combine in specific proportions.

cathode rays were bent in the same way whenever a magnet was brought near them.

answer///scientific method;