As airplane is flying at 800 km/hour. No-slip boundary condition ensures that the velocity of a fluid particle on the airplane surface is km/hour to an observer on the ground.

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 : )

explanation:

could i give you a exaplo that could you?