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In chemical formulas, the arrows represent the way of the reaction. Two opposing arrows mean that the reaction will go in both directions, until its specific equilibrum is reached.
Friction, if that is what you mean.
Density: As gas density increases, the molecules become closer to each other. Therefore, they are more likely to run into each other, so the mean free path decreases.Increasing the number of molecules or decreasing the volume will cause density to increase. This will decrease the mean free path.Radius of molecule: Increasing the radius of the molecules will decrease the space between them, causing them to run into each other more. Therefore, mean free path decrease.Pressure, Temperature, and other factors that affect density can indirectly affect mean free path.
two (wink wink) blubbery surfaces rubbing against each other if you know what I mean
Tire Pressure
I think the "Fallout Shelter" sign
It can go in either direction i think Thomassen
It means that one or more of your tyres is low on air pressure. If your spare wheel is equipped with a sensor, it could be the spare wheel too. - Ananda Herathm Colombo, Sri Lanka Mobile NO: +94 773 833555
vertical angles are when you have an "x" made by intersecting lines and the angles in it are vertical angles. Opposite angles are when you have the x, the angles are on directly opposite sides. --->x<--- those are opposite of each other. therefore they are opposite angles. the arrows are pointing at them
the arrows mean "is eaten by" so for example, if there is a picture of a rabbit with a arrow pointing to a fox it would mean that the rabbit "is eaten by" the fox
It means traffic can pass on either side of an obstruction such as an island.
the arrows in a food chain mean "is eaten by" for example: grass----->rabbit----->fox the grass is eaten by or consumed by the rabbit. the rabbit is then consumed or eaten by the fox hope this helps
Low tire pressure most likely...
the horse is your tires . " low air pressure"
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Where the energy goes to, in other words, what is doing the eating. For example if the arrow is pointing from a rodent to a snake, the energy from the rodent is going to the snake (when it eats the rodent).