What is the kinetic energy of a 1-kilogram ball is thrown into the air with ab ititial velocity of 30m/s?

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.

c (diamond),

sio2 (quartz)