Drehex Corporation needs to hire an engineer to develop W a prototype for a project. The company asks each
pro
engineer to provide a cost and time estimate for the work.
Each bid is shown in the table.

1. how to locate the image in converging(concave) mirror and diverging (convex) mirror with salt. 2. how to locate the image in a converging (convex) lens and diverging (concave) lens with salt.

1. explain how you calculate the net force in any direction on the box. 2. suppose an upward force of 15n is added to the box. what will be the net vertical force on the box? 3. what force could be applied to the box to make the net force in the horizontal direction zero? explain. 4. suppose a force of 25n to the right is added to the box. what will be the net force to the right?

How does the strength of the electrostatic force between an electron and a proton compare to the strength of the gravitational force between them?