Which of the following is not a characteristic of real images?

They can be larger or smaller than the object they are a reflection of.

They are produced by converging mirrors.

They are upside-down.

All of these are characteristics of real images.

Which one of the following research methods can show cause and effect

If forces acting on an object are unbalanced. true or false

Aball with a mass of 275 g is dropped from rest, hits the floor and rebounds upward. if the ball hits the floor with a speed of 2.40 m/s and rebounds with a speed of 1.70 m/s, determine the following. (a) magnitude of the change in the ball's momentum (let up be in the positive direction.)