The dictionary from #2 falls off the table. How much kinetic energy does it have just before it hits the floor?

u i forgot the answer?

answer : a model is often used to explain and make things easier to understand when any scientific topic needs to be demonstrated and explained.

as in this case where a scientist wants to use a model to present the results of his detailed scientific investigation. he should do it as it will him to make the audience understand the concept in a much better way. also, it can be changed according to new scientific understandings.

it forms an anion that has a larger radius. anions have a negative charge and are larger than the original atom.

here are some of the ways in which chemical and nuclear reactions differ.

explanation: