a moving object has the clockwise function: s = 5 + 2t (no S. I). determine its position when t = 7 s B) in which moment does the moving object surpass the position s = 25m? Need an answer pls :)

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?

Atrain departs from its station at a constant acceleration of 5 m/s. what is the speed of the train at the end of 20s?

Why is it important always to use horizontal bars in unit fractions when performing unit conversions?