Karen is sitting in a movie theater, 11 meters from the screen. The angle of elevation from her line of sight to the top of the screen is 13°, and the angle of depression from her line of sight to the bottom of the screen is 49°. Find the height of the entire screen.

15.2m

Explanation:

The height of the screen would be the sum of the elevation height and the depression height, both make a triangle with her distance to screen with their respective angles

here we know that ball will drop down by total distance 3.2 m

so here we know that

now using kinematics

now in the same time it will cover horizontal distance of 0.75 m

so speed of the ball will be

falling water hydro = water .. spectcular places these plants are