1.What is a reference system? 2.What is path, road and move? 3.What is speed? 4. How is acceleration defined? 5.What is a rigid body?
6. What is the angular displacement and the described angle?
7.Angular velocity. Angular acceleration. Period and frequency.

(sorry, i had to translate these on google because idk how to translate some terms, if you know serbian, i can send you on serbian)

1. reference system - a system that uses coordinates to establish position coordinate system , frame of reference , reference frame organization , arrangement , organisation , system - an organized structure for arranging or classifying; "he changed the arrangement of the topics"; "the facts were familiar but it was in the organization of them that he was original"; "he tried to understand their system of classification"

2. Path- a way or track laid down for walking or made by continual treading. Road- a wide way leading from one place to another, especially one with a specially prepared surface which vehicles can use. Move- go in a specified direction or manner; change position.

Explanation:

c.the charges if the proton and electron and gravity

hi there!

your question asks at which segment does freezing occur.

since we're talking about water, the freezing point of water will be 32 degrees fahrenheit or below.

hope this ! ~