The side mirrors on cars are convex mirrors. If the side mirror on the driver side of your car has a focal length with a magnitude of 5.30 m and a truck is at a distance of 3.00 m from the mirror, determine the following.

(a) image distance of the truck (Include the appropriate positive or negative sign.)
m
(b) magnification for this object distance (Include the appropriate positive or negative sign.)

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 would be the strength of earth's gravitational field at a point where an 80.0 kg astronaut would experience a 80% reduction in weight

What is the force that opposes motion and works against the downward pull? a) friction b) gravity c) weight d) acceleration