Athin, diverging lens having a focal length of magnitude 45.0 cm has the same principal axis as a concave mirror with a radius of 60.0 cm. the center of the mirror is 20.0 cm from the lens, with the lens in front of the mirror. an object is placed 23.0 cm in front of the lens.
1) where is the final image due to the lens-mirror combination? enter the image distance with respect to the mirror. follow the sign convention. (express your answer to three significant figures.)
2) is the final image real or virtual?
3) is the final image upright or inverted?
4) suppose now that the concave mirror is replaced by a convex mirror of the same radius. where is the final image due to the lens-mirror combination? enter the image distance with respect to the mirror. follow the sign convention. (express your answer to three significant figures.)

Is a  vector quantity  that refers to "the rate at which an object changes its position." imagine a person moving rapidly - one step forward and one step back - always returning to the original starting position. while this might result in a frenzy of activity, it would result in a zero velocity. because the person always returns to the original position, the motion would never result in a change in position. since velocity is defined as the rate at which the position changes, this motion results in zero velocity. if a person in motion wishes to maximize their velocity, then that person must make every effort to maximize the amount that they are displaced from their original position. every step must go into moving that person further from where he or she started. for certain, the person should never change directions and begin to return to the starting position.

Are a.larger

The best description is: . nobody has any idea what q is.

You would need to take a picture so i can see