An autographed baseball rolls off of a 0.91 m high desk and strikes the floor 0.84 m away from the desk. how fast was it rolling on the desk before it fell off? the acceleration of gravity is 9.81 m/s2 .

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 : )

myth. it was once thought that animals, including cats and dogs, could only see in black and white. however, scientists have proven this to be a myth. in all animals, including humans, the perception of colour is determined by the presence of cells in the eye called cone photoreceptors.