Un palloncino contiene una miscela di gas composta da Elio e azoto

Rank the torques on the five doors shown in the figure above from least to greatest. note that the magnitude of all the forces is the same

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?

Why don't you see your reflection in water with waves or repples