Tại sao phải sử dụng thời điểm như 1 yếu tố để xác định vị trí của một vật?

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?

True or false: the revolution of the earth creates day and night as it rotates around the sun

The act of moving from one place to another. a. locomotor b. aerobic c. stationary d. static