Which best describes the electromagnetic force? It is weaker than the gravitational force, with a greater range than the weak nuclear force.
It is stronger than the gravitational force, with a greater range than the weak nuclear force.
It is weaker than the strong nuclear force, with a smaller range than the weak nuclear force.
It is stronger than the weak nuclear force, with a smaller range than the strong nuclear force.

Scientific models are based on current knowledge, which can limit their effectiveness when new discoveries are made.

12. ritu obtained a distinct image of a distant tree on the screen with the of a concave mirror.to find the focal length of the mirror she has to measure the distance between: (a) mirror and the tree. (b) screen and the tree.(c) mirror and the screen. (d) mirror and tree as well as between screen and the tree.

The results of huy's eye exam show that he is nearsighted. which explanation should huy expect to hear? "you need convex lenses to shorten the distance that light takes to focus in your eyes." "you need concave lenses to shorten the distance that light takes to focus in your eyes." "you need convex lenses to lengthen the distance that light takes to focus in your eyes." "you need concave lenses to lengthen the distance that light takes to focus in your eyes."