The water side of the wall of an 80-m-long dam is a quarter circle with a radius of 8 m. If the water has a density of 1000 kg/m3 throughout, determine the hydrostatic force on the dam and its line of action when the dam is filled to the rim.

Abird sitting high in a tree is an example of what type of wnergy

The place you get your hair cut has two nearly parallel mirrors 6.00 m apart. as you sit in the chair, your head is 2.00 m from the nearer mirror. looking toward this mirror, you first see your face and then, farther away, the back of your head. (the mirrors need to be slightly nonparallel for you to be able to see the back of your head, but you can treat them as parallel in this problem.) how far away does the back of your head appear to be?

What is relative velocity? in which condition is relative velocity known by adding the velocity of the first body and that of the second body