Keisha looks out the window from a tall building at her friend monique standing on the ground, 8.3 m away from the side of the building, as shown. if keisha's line of sight makes a 30° angle with the side of the building, what is keisha's height above the ground? assume monique is 1.5 m tall. a. 14 m b. 15 m c. 16 m d. 17 m

Explanation:

GIVEN DATA:

Distance between keisha and her friend 8.3 m

angle made by keisha toside building 30 degree

height of her friend monique is 1.5 m

from the figure

therefore

height of keisha is

                               = 14.376 + 1.5

therefore option c is correct

energy stored in the capacitor= 9.72 x 10⁻⁴ j

explanation:

the energy stored in the capacitor is given by

e= 1/2 c v²

e= energy stored

c= capacitance= 1.5 µc= 1.5 x 10⁻⁶f

v= potential difference=36 v

so energy stored= e= 1/2 (1.5 x 10⁻⁶) (36)²

energy stored= 9.72 x 10⁻⁴j