After school, several students skateboard at the nearby park. your best friend, erwin, is a good skateboarder and happens to fall when attempting a fancy trick. after falling, erwin gets back up and starts repeating the trick over and over again. how would a cognitive psychologist interpret erwin getting back up and repeating the trick many times?

A person who never gives up.

Explanation:

due to his passion for skateboarding he try's his never gives up until he will finally learns the trick.

a displacement distance is size of displ

no. bullets are macro objects. wave nature is for light waves, extremely tiny particles. if a light particle was the size of your finger, the bullet would be the size of the universe. so basically, that huge difference in size makes the wave nature of matter insignificant.