Where is the error in this table of nanotechnology applications?

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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?

The long handle on a rake is a(n) a. lever b. screw c. wedge d. inclined plane

Need asap ‼️ 20 pts which gravitational force field diagram is drawn correctly? (answers in pictures below)