Hl Charles de Coulomb measured attractive and repulsive forces caused by charged
objects. Which statement is true about the electromagnetic force? *
•Only the charge of one object that is interacting with another chargedobject affects the
electromagnetic force between the two objects.
•The distance between two charged objects has no effect on the electromagnetic force
between the two objects.
•The charge between two charged objects has no effect on the electromagnetic force
between the two objects.
•The charge and distance between two charged objects both influence the
electromagnetic force between the two objects.

i guess that visual aids present persuasive examples to what you are presenting, some factors would be theme (does it fit with the color, information, what you are presenting), size (can you see it, is it a big enough span of data/information), and overall look of the visual aid.

hope this : )

if the thermos has a vacuum innner, then heat through conv currents and conduction are reduced = vacuum flask

the independent variable, or the one that is intentionally manipulated is the speed.

jupiter is the largest planet in our solar system, having a mass and radius that are respectively, 318 and 11.2 times that of earth. suppose that an object falls from rest near the surface of each planet and that the acceleration due to gravity remains constant during the fall. each object falls the same distance before striking the ground. determine the ratio of the time of fall on jupiter to that on earth.