What is a Pure element ?

The missing component to the table to the right or indicated with orange letters complete the table by filling in the corresponding numbers or symbols

4. a 20-kg child is tossed up into the air by her parent. the child is 2 meters off the ground traveling 5 m/s. circle one: ke / gpe / both show your work for finding the values of each type of energy the object has:

Which scenario is most similar to the type of collision that gas particles have according to kinetic molecular theory