a wind tunnel can be used to model the effect wind has on an airplane. what is one limitation of this model?

This is what i found on google “according to the collision theory, the following criteria must be met in order for a chemical reaction to occur: molecules must collide with sufficient energy, known as the activation energy, so that chemical bonds can break. molecules must collide with the proper orientation.” i hope this information you.

Awoodchuck would chuck all the wood he could chuck if a woodchuck could chuck wood.

This is what a calorimeter is used for simpler ex, to measure calories in food.