Explain how the energy transfer to the wall and air would be different for ball 1

There are traits like blood type and eye color, and others like speaking english or having a scar. what are the terms used to describe these different types of traits? how are each defined?

What would a student most likely use if he or she wanted to consult a secondary source

To confirm when to exclude children from school it’s recommend that you refer to guidelines from which of the following organizations